diff --git a/xschem/.gitignore b/xschem/.gitignore
new file mode 100644
index 0000000..e9a03a2
--- /dev/null
+++ b/xschem/.gitignore
@@ -0,0 +1,3 @@
+*.ext
+sourceme
+xschemrc
diff --git a/xschem/BGR_lvs.sch b/xschem/BGR_lvs.sch
new file mode 100644
index 0000000..525fd48
--- /dev/null
+++ b/xschem/BGR_lvs.sch
@@ -0,0 +1,1146 @@
+v {xschem version=3.0.0 file_version=1.2 }
+G {}
+K {}
+V {}
+S {}
+E {}
+T {Itail = 100uA
+Iout = 460uA} -810 -310 0 0 0.4 0.4 {}
+T {Itail = 150uA
+Iout = 460uA} 460 -340 0 0 0.4 0.4 {}
+N -970 -40 -970 -10 { lab=VSS}
+N -1030 -70 -970 -70 { lab=VSS}
+N -1030 -70 -1030 -10 { lab=VSS}
+N -970 -670 -750 -670 { lab=VDD}
+N -510 -670 -310 -670 { lab=VDD}
+N -510 -330 -510 -310 { lab=Vb}
+N -510 -410 -510 -330 { lab=Vb}
+N 0 -460 0 -330 { lab=Vbg}
+N -510 -250 -510 -230 { lab=Vb}
+N -510 -540 -510 -470 { lab=Vb}
+N -510 -170 -510 -100 { lab=vbneg}
+N -470 -70 -470 -10 { lab=VSS}
+N -510 -40 -510 -10 { lab=VSS}
+N -550 -70 -510 -70 { lab=VSS}
+N -550 -70 -550 -10 { lab=VSS}
+N -930 -70 -910 -70 { lab=VSS}
+N -910 -70 -910 -10 { lab=VSS}
+N -610 -200 -530 -200 { lab=VSS}
+N -610 -200 -610 -10 { lab=VSS}
+N -970 -250 -970 -100 { lab=Va}
+N -620 -330 -510 -330 { lab=Vb}
+N -1270 -40 -1260 -40 { lab=VSS}
+N -1310 -70 -1310 -40 { lab=Vota_bias1}
+N -1310 -70 -1270 -70 { lab=Vota_bias1}
+N -1260 -40 -1260 -10 { lab=VSS}
+N -120 -670 0 -670 { lab=VDD}
+N -510 -670 -510 -600 { lab=VDD}
+N -120 -10 0 -10 { lab=VSS}
+N -970 -330 -970 -310 { lab=Va}
+N -550 -580 -550 -570 { lab=vgate}
+N -1010 -580 -1010 -570 { lab=vgate}
+N -970 -540 -970 -480 { lab=Va}
+N -1270 -570 -1260 -570 { lab=VDD}
+N -1260 -600 -1260 -570 { lab=VDD}
+N -1270 -600 -1260 -600 { lab=VDD}
+N -970 -570 -960 -570 { lab=VDD}
+N -960 -600 -960 -570 { lab=VDD}
+N -970 -600 -960 -600 { lab=VDD}
+N -970 -670 -970 -600 { lab=VDD}
+N -510 -570 -500 -570 { lab=VDD}
+N -500 -600 -500 -570 { lab=VDD}
+N -510 -600 -500 -600 { lab=VDD}
+N -1230 -670 -970 -670 { lab=VDD}
+N -70 -580 -40 -580 { lab=vgate}
+N -1310 -580 -1310 -570 { lab=vgate}
+N -1270 -670 -1270 -600 { lab=VDD}
+N -1270 -350 -1270 -70 { lab=Vota_bias1}
+N -970 -330 -900 -330 { lab=Va}
+N -1030 -10 -970 -10 { lab=VSS}
+N -1100 -10 -1030 -10 { lab=VSS}
+N -1220 -10 -1100 -10 { lab=VSS}
+N -470 -10 -380 -10 { lab=VSS}
+N -510 -10 -470 -10 { lab=VSS}
+N -550 -10 -510 -10 { lab=VSS}
+N -610 -10 -550 -10 { lab=VSS}
+N -970 -10 -910 -10 { lab=VSS}
+N -910 -10 -850 -10 { lab=VSS}
+N 0 -270 0 -250 { lab=vbe3}
+N -310 -670 -120 -670 { lab=VDD}
+N -1010 -580 -790 -580 { lab=vgate}
+N -790 -580 -310 -580 { lab=vgate}
+N -970 -420 -970 -330 { lab=Va}
+N -1270 -670 -1230 -670 { lab=VDD}
+N -1260 -10 -1220 -10 { lab=VSS}
+N -1170 -580 -1010 -580 { lab=vgate}
+N -1310 -580 -1170 -580 { lab=vgate}
+N 0 -670 300 -670 {
+lab=VDD}
+N -720 -330 -620 -330 {
+lab=Vb}
+N -720 -360 -720 -330 {
+lab=Vb}
+N -900 -330 -760 -330 {
+lab=Va}
+N -760 -360 -760 -330 {
+lab=Va}
+N -740 -580 -740 -530 {
+lab=vgate}
+N -750 -670 -510 -670 {
+lab=VDD}
+N -310 -580 -70 -580 {
+lab=vgate}
+N -850 -10 -610 -10 {
+lab=VSS}
+N -380 -10 -120 -10 {
+lab=VSS}
+N -860 -460 -800 -460 {
+lab=VSS}
+N -660 -460 -620 -460 {
+lab=VDD}
+N -660 -430 -640 -430 {
+lab=Vota_bias1}
+N 0 -250 0 -140 {
+lab=vbe3}
+N 0 -80 0 -10 {
+lab=VSS}
+N 40 -110 40 -10 {
+lab=VSS}
+N 0 -400 140 -400 {
+lab=Vbg}
+N -1270 -540 -1270 -470 {
+lab=Vota_bias1}
+N -1270 -410 -1270 -350 {
+lab=Vota_bias1}
+N -90 -300 -20 -300 {
+lab=VSS}
+N -90 -300 -90 -10 {
+lab=VSS}
+N -40 -580 -40 -570 {
+lab=vgate}
+N 0 -670 0 -600 {
+lab=VDD}
+N 0 -540 0 -520 {
+lab=Vbg}
+N -1270 -10 -1260 -10 {
+lab=VSS}
+N -0 -570 20 -570 {
+lab=VDD}
+N 20 -600 20 -570 {
+lab=VDD}
+N 0 -600 20 -600 {
+lab=VDD}
+N -220 -390 -220 -10 {
+lab=VSS}
+N -220 -420 -210 -420 { lab=VSS}
+N 410 -670 440 -670 {
+lab=VDD}
+N 440 -670 440 -500 {
+lab=VDD}
+N 280 -440 340 -440 {
+lab=vd4}
+N 560 -420 620 -420 {
+lab=vcurrent_gate}
+N 440 -670 660 -670 {
+lab=VDD}
+N 440 -360 440 -320 {
+lab=VSS}
+N 660 -390 660 -370 {
+lab=vd4}
+N 660 -310 660 -280 {
+lab=vd4}
+N 660 -440 660 -390 {
+lab=vd4}
+N 600 -470 600 -420 {
+lab=vcurrent_gate}
+N 600 -470 620 -470 {
+lab=vcurrent_gate}
+N 660 -670 660 -500 {
+lab=VDD}
+N 840 -390 840 -370 {
+lab=voutb2}
+N 840 -440 840 -390 {
+lab=voutb2}
+N 620 -420 780 -420 {
+lab=vcurrent_gate}
+N 840 -670 840 -500 {
+lab=VDD}
+N 660 -670 840 -670 {
+lab=VDD}
+N 790 -150 790 -10 {
+lab=VSS}
+N 660 -470 710 -470 {
+lab=VDD}
+N 710 -520 710 -470 {
+lab=VDD}
+N 660 -520 710 -520 {
+lab=VDD}
+N 840 -470 900 -470 {
+lab=VDD}
+N 900 -520 900 -470 {
+lab=VDD}
+N 840 -520 900 -520 {
+lab=VDD}
+N 300 -400 340 -400 {
+lab=Vbg}
+N 300 -670 410 -670 {
+lab=VDD}
+N 370 -10 660 -10 {
+lab=VSS}
+N 840 -10 910 -10 {
+lab=VSS}
+N 410 -520 410 -500 {
+lab=Vota_bias1}
+N 660 -280 660 -250 {
+lab=vd4}
+N 660 -250 660 -220 {
+lab=vd4}
+N 840 -100 840 -70 {
+lab=voutb1}
+N 840 -200 840 -160 {
+lab=voutb2}
+N 840 -310 840 -260 {
+lab=voutb2}
+N 880 -40 910 -40 {
+lab=voutb1}
+N 910 -80 910 -40 {
+lab=voutb1}
+N 910 -180 910 -130 {
+lab=voutb2}
+N 840 -180 910 -180 {
+lab=voutb2}
+N 790 -130 840 -130 {
+lab=VSS}
+N 790 -40 840 -40 {
+lab=VSS}
+N 880 -130 910 -130 {
+lab=voutb2}
+N 840 -80 910 -80 {
+lab=voutb1}
+N 660 -10 790 -10 {
+lab=VSS}
+N 790 -10 840 -10 {
+lab=VSS}
+N 660 -220 660 -160 {
+lab=vd4}
+N 660 -160 660 -130 {
+lab=vd4}
+N 0 -10 370 -10 {
+lab=VSS}
+N -220 -500 -220 -450 {
+lab=vgate}
+N -220 -580 -220 -500 {
+lab=vgate}
+N 280 -310 280 -280 {
+lab=vd4}
+N 280 -400 280 -310 {
+lab=vd4}
+N 280 -440 280 -400 {
+lab=vd4}
+N 510 -420 560 -420 {
+lab=vcurrent_gate}
+N 780 -420 800 -420 {
+lab=vcurrent_gate}
+N 800 -470 800 -420 {
+lab=vcurrent_gate}
+N -170 -900 -170 -860 {
+lab=#net1}
+N -250 -830 -210 -830 {
+lab=porst}
+N -250 -930 -250 -830 {
+lab=porst}
+N -250 -930 -210 -930 {
+lab=porst}
+N -170 -990 -170 -960 {
+lab=VDD}
+N -30 -900 -30 -860 {
+lab=#net2}
+N -30 -990 -30 -960 {
+lab=VDD}
+N -80 -830 -70 -830 {
+lab=#net1}
+N -80 -930 -80 -830 {
+lab=#net1}
+N -80 -930 -70 -930 {
+lab=#net1}
+N -170 -880 -80 -880 {
+lab=#net1}
+N -170 -990 -30 -990 {
+lab=VDD}
+N -170 -800 -170 -780 {
+lab=VSS}
+N -170 -780 -30 -780 {
+lab=VSS}
+N -30 -800 -30 -780 {
+lab=VSS}
+N -170 -930 -150 -930 {
+lab=VDD}
+N -150 -960 -150 -930 {
+lab=VDD}
+N -170 -960 -150 -960 {
+lab=VDD}
+N -30 -930 -10 -930 {
+lab=VDD}
+N -10 -960 -10 -930 {
+lab=VDD}
+N -30 -960 -10 -960 {
+lab=VDD}
+N -170 -830 -150 -830 {
+lab=VSS}
+N -150 -830 -150 -800 {
+lab=VSS}
+N -170 -800 -150 -800 {
+lab=VSS}
+N -30 -830 -10 -830 {
+lab=VSS}
+N -10 -830 -10 -800 {
+lab=VSS}
+N -30 -800 -10 -800 {
+lab=VSS}
+N -210 -420 -200 -420 {
+lab=VSS}
+N -200 -420 -200 -390 {
+lab=VSS}
+N -220 -390 -200 -390 {
+lab=VSS}
+N 160 -880 160 -840 {
+lab=porst_buff}
+N 140 -880 160 -880 {
+lab=porst_buff}
+N -30 -880 80 -880 {
+lab=#net2}
+N 160 -780 160 -750 {
+lab=VSS}
+N 840 -260 840 -200 {
+lab=voutb2}
+N 1060 -100 1060 -70 {
+lab=#net3}
+N 910 -10 1060 -10 {
+lab=VSS}
+N 1060 -10 1230 -10 {
+lab=VSS}
+N 1230 -100 1230 -70 {
+lab=#net4}
+N 1060 -200 1060 -160 {
+lab=Iout0}
+N 1230 -200 1230 -160 {
+lab=Iout1}
+N 910 -40 1020 -40 {
+lab=voutb1}
+N 910 -130 1020 -130 {
+lab=voutb2}
+N 1160 -40 1190 -40 {
+lab=voutb1}
+N 1160 -130 1190 -130 {
+lab=voutb2}
+N 1060 -130 1090 -130 {
+lab=VSS}
+N 1090 -130 1090 -100 {
+lab=VSS}
+N 1060 -40 1090 -40 {
+lab=VSS}
+N 1090 -40 1090 -10 {
+lab=VSS}
+N 1230 -130 1260 -130 {
+lab=VSS}
+N 1260 -130 1260 -100 {
+lab=VSS}
+N 1230 -40 1260 -40 {
+lab=VSS}
+N 1260 -40 1260 -10 {
+lab=VSS}
+N 1230 -10 1260 -10 {
+lab=VSS}
+N 280 -280 660 -280 {
+lab=vd4}
+N -1310 -10 -1270 -10 {
+lab=VSS}
+N 1400 -100 1400 -70 {
+lab=#net5}
+N 1400 -200 1400 -160 {
+lab=Iout2}
+N 1330 -40 1360 -40 {
+lab=voutb1}
+N 1330 -130 1360 -130 {
+lab=voutb2}
+N 1400 -130 1430 -130 {
+lab=VSS}
+N 1430 -130 1430 -100 {
+lab=VSS}
+N 1400 -40 1430 -40 {
+lab=VSS}
+N 1430 -40 1430 -10 {
+lab=VSS}
+N 1400 -10 1430 -10 {
+lab=VSS}
+N 1260 -10 1400 -10 {
+lab=VSS}
+N 1610 -100 1610 -70 {
+lab=#net6}
+N 1610 -200 1610 -160 {
+lab=Iout3}
+N 1540 -40 1570 -40 {
+lab=voutb1}
+N 1540 -130 1570 -130 {
+lab=voutb2}
+N 1610 -130 1640 -130 {
+lab=VSS}
+N 1640 -130 1640 -100 {
+lab=VSS}
+N 1610 -40 1640 -40 {
+lab=VSS}
+N 1640 -40 1640 -10 {
+lab=VSS}
+N 1610 -10 1640 -10 {
+lab=VSS}
+N 1780 -100 1780 -70 {
+lab=#net7}
+N 1780 -200 1780 -160 {
+lab=Iout4}
+N 1710 -40 1740 -40 {
+lab=voutb1}
+N 1710 -130 1740 -130 {
+lab=voutb2}
+N 1780 -130 1810 -130 {
+lab=VSS}
+N 1810 -130 1810 -100 {
+lab=VSS}
+N 1780 -40 1810 -40 {
+lab=VSS}
+N 1810 -40 1810 -10 {
+lab=VSS}
+N 1780 -10 1810 -10 {
+lab=VSS}
+N 1640 -10 1780 -10 {
+lab=VSS}
+N 1430 -10 1610 -10 {
+lab=VSS}
+N 1970 -100 1970 -70 {
+lab=#net8}
+N 1970 -200 1970 -160 {
+lab=Iout5}
+N 1900 -40 1930 -40 {
+lab=voutb1}
+N 1900 -130 1930 -130 {
+lab=voutb2}
+N 1970 -130 2000 -130 {
+lab=VSS}
+N 2000 -130 2000 -100 {
+lab=VSS}
+N 1970 -40 2000 -40 {
+lab=VSS}
+N 2000 -40 2000 -10 {
+lab=VSS}
+N 1970 -10 2000 -10 {
+lab=VSS}
+N 2140 -100 2140 -70 {
+lab=#net9}
+N 2140 -200 2140 -160 {
+lab=Iout6}
+N 2070 -40 2100 -40 {
+lab=voutb1}
+N 2070 -130 2100 -130 {
+lab=voutb2}
+N 2140 -130 2170 -130 {
+lab=VSS}
+N 2170 -130 2170 -100 {
+lab=VSS}
+N 2140 -40 2170 -40 {
+lab=VSS}
+N 2170 -40 2170 -10 {
+lab=VSS}
+N 2140 -10 2170 -10 {
+lab=VSS}
+N 2000 -10 2140 -10 {
+lab=VSS}
+N 1810 -10 1970 -10 {
+lab=VSS}
+N 470 -160 660 -160 {
+lab=vd4}
+N 170 -160 170 -10 {
+lab=VSS}
+N 200 -140 260 -140 {
+lab=VSS}
+N 260 -140 320 -140 {
+lab=VSS}
+N 320 -140 380 -140 {
+lab=VSS}
+N 380 -140 440 -140 {
+lab=VSS}
+N 280 -140 280 -10 {
+lab=VSS}
+N 1050 -460 1090 -460 {
+lab=VSS}
+N 1050 -460 1050 -400 {
+lab=VSS}
+N 1050 -400 1090 -400 {
+lab=VSS}
+N 1130 -430 1180 -430 {
+lab=VSS}
+N 1180 -430 1180 -370 {
+lab=VSS}
+N 1050 -370 1180 -370 {
+lab=VSS}
+N 1050 -400 1050 -370 {
+lab=VSS}
+N 1090 -100 1090 -40 {
+lab=VSS}
+N 1260 -100 1260 -40 {
+lab=VSS}
+N 1430 -100 1430 -40 {
+lab=VSS}
+N 1640 -100 1640 -40 {
+lab=VSS}
+N 1810 -100 1810 -40 {
+lab=VSS}
+N 2000 -100 2000 -40 {
+lab=VSS}
+N 2170 -100 2170 -40 {
+lab=VSS}
+N 660 -130 660 -80 {
+lab=vd4}
+N 610 -80 660 -80 {
+lab=vd4}
+N 530 -80 550 -80 {
+lab=#net10}
+N 440 -80 470 -80 {
+lab=VSS}
+N 440 -80 440 -10 {
+lab=VSS}
+N 500 -60 500 -10 {
+lab=VSS}
+N 580 -60 580 -10 {
+lab=VSS}
+N 1360 -400 1360 -370 {
+lab=VSS}
+N 1290 -340 1320 -340 {
+lab=VSS}
+N 1290 -430 1320 -430 {
+lab=VSS}
+N 1360 -430 1390 -430 {
+lab=VSS}
+N 1390 -430 1390 -400 {
+lab=VSS}
+N 1360 -340 1390 -340 {
+lab=VSS}
+N 1390 -340 1390 -310 {
+lab=VSS}
+N 1360 -310 1390 -310 {
+lab=VSS}
+N 1390 -400 1390 -340 {
+lab=VSS}
+N 1290 -430 1290 -340 {
+lab=VSS}
+N 1290 -310 1360 -310 {
+lab=VSS}
+N 1290 -340 1290 -310 {
+lab=VSS}
+N 1290 -460 1290 -430 {
+lab=VSS}
+N 1290 -460 1360 -460 {
+lab=VSS}
+N 1360 -460 1390 -460 {
+lab=VSS}
+N 1390 -460 1390 -430 {
+lab=VSS}
+N 1550 -520 1550 -480 {
+lab=VDD}
+N 1480 -480 1550 -480 {
+lab=VDD}
+N 1480 -550 1480 -480 {
+lab=VDD}
+N 1480 -550 1510 -550 {
+lab=VDD}
+N 1510 -610 1510 -550 {
+lab=VDD}
+N 1510 -610 1550 -610 {
+lab=VDD}
+N 1550 -610 1550 -580 {
+lab=VDD}
+N 1550 -550 1580 -550 {
+lab=VDD}
+N 1580 -610 1580 -550 {
+lab=VDD}
+N 1550 -610 1580 -610 {
+lab=VDD}
+N -1270 -470 -1270 -410 {
+lab=Vota_bias1}
+N -970 -310 -970 -250 {
+lab=Va}
+N -970 -480 -970 -420 {
+lab=Va}
+N -510 -310 -510 -250 {
+lab=Vb}
+N -510 -470 -510 -410 {
+lab=Vb}
+N 0 -520 0 -460 {
+lab=Vbg}
+N 660 -370 660 -310 {
+lab=vd4}
+N 840 -370 840 -310 {
+lab=voutb2}
+N 1360 -380 1390 -380 {
+lab=VSS}
+C {sky130_fd_pr/pnp_05v5.sym} -950 -70 0 1 {name=Q2
+model=pnp_05v5_W3p40L3p40
+spiceprefix=X
+}
+C {devices/lab_pin.sym} -900 -330 3 0 {name=l5 lab=Va}
+C {devices/lab_pin.sym} -620 -330 3 0 {name=l6 lab=Vb}
+C {sky130_fd_pr/pnp_05v5.sym} -490 -70 0 1 {name=Q1
+model="pnp_05v5_W3p40L3p40 m=34"
+spiceprefix=X
+}
+C {devices/lab_pin.sym} -510 -140 0 0 {name=l4 lab=vbneg}
+C {devices/lab_wire.sym} -820 -580 0 0 {name=l11 lab=vgate}
+C {sky130_fd_pr/nfet_01v8_lvt.sym} -1290 -40 0 0 {name=Mota_bias_n
+L=4
+W=5
+nf=1
+mult=1
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8_lvt
+spiceprefix=X
+}
+C {sky130_fd_pr/pfet_01v8_lvt.sym} -1290 -570 0 0 {name=Mota_bias_p
+L=1
+W=1
+nf=1
+mult=10
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=pfet_01v8_lvt
+spiceprefix=X
+}
+C {sky130_fd_pr/pfet_01v8_lvt.sym} -990 -570 0 0 {name=Mfeedback_mir
+L=1
+W=1
+nf=1
+mult=28
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=pfet_01v8_lvt
+spiceprefix=X
+}
+C {sky130_fd_pr/pfet_01v8_lvt.sym} -530 -570 0 0 {name=Mfeedback_mir1
+L=1
+W=1
+nf=1
+mult=28
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=pfet_01v8_lvt
+spiceprefix=X
+}
+C {sky130_fd_pr/pfet_01v8_lvt.sym} -20 -570 0 0 {name=Mfeedback_mir2
+L=1
+W=1
+nf=1
+mult=28
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=pfet_01v8_lvt
+spiceprefix=X
+}
+C {devices/ngspice_probe.sym} -510 -140 0 0 {name=r9}
+C {devices/lab_wire.sym} -620 -460 0 1 {name=l14 lab=VDD}
+C {devices/lab_pin.sym} 0 -190 0 0 {name=l15 lab=vbe3}
+C {sky130_fd_pr/pnp_05v5.sym} 20 -110 0 1 {name=Q3
+model=pnp_05v5_W3p40L3p40
+*model="pnp_05v5_W3p40L3p40 m=1"
+spiceprefix=X
+}
+C {devices/lab_pin.sym} -1310 -70 2 1 {name=l2 lab=Vota_bias1}
+C {devices/lab_pin.sym} -640 -430 2 0 {name=l18 lab=Vota_bias1}
+C {devices/lab_pin.sym} -260 -420 0 0 {name=l26 lab=porst_buff}
+C {sky130_fd_pr/pfet_01v8_lvt.sym} 640 -470 0 0 {name=M11
+L=1
+W=1
+nf=1
+mult=5
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=pfet_01v8_lvt
+spiceprefix=X
+}
+C {sky130_fd_pr/pfet_01v8_lvt.sym} 820 -470 0 0 {name=M8
+L=1
+W=1
+nf=1
+mult=5
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=pfet_01v8_lvt
+spiceprefix=X
+}
+C {sky130_fd_pr/nfet_01v8_lvt.sym} 860 -40 0 1 {name=M4
+L=2
+W=8
+nf=1
+mult=8
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8_lvt
+spiceprefix=X
+}
+C {devices/lab_pin.sym} 840 -410 0 1 {name=l24 lab=voutb2}
+C {devices/lab_pin.sym} 660 -400 0 1 {name=l25 lab=vd4}
+C {devices/lab_pin.sym} 410 -520 2 1 {name=l19 lab=Vota_bias1}
+C {sky130_fd_pr/nfet_01v8_lvt.sym} 860 -130 0 1 {name=M5
+L=2
+W=8
+nf=1
+mult=8
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8_lvt
+spiceprefix=X
+}
+C {lab_wire.sym} 330 -400 0 0 {name=l7 sig_type=std_logic lab=Vbg}
+C {devices/lab_pin.sym} 600 -470 0 0 {name=l21 lab=vcurrent_gate}
+C {sky130_fd_pr/nfet_01v8.sym} -190 -830 0 0 {name=Minv_n
+L=0.5
+W=1.5
+nf=1 
+mult=1
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8
+spiceprefix=X
+}
+C {sky130_fd_pr/pfet_01v8.sym} -190 -930 0 0 {name=Minv_p
+L=0.5
+W=4
+nf=1
+mult=1
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=pfet_01v8
+spiceprefix=X
+}
+C {sky130_fd_pr/nfet_01v8.sym} -50 -830 0 0 {name=Minv_n1
+L=0.5
+W=1.5
+nf=1 
+mult=1
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8
+spiceprefix=X
+}
+C {sky130_fd_pr/pfet_01v8.sym} -50 -930 0 0 {name=Minv_p1
+L=0.5
+W=4
+nf=1
+mult=1
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=pfet_01v8
+spiceprefix=X
+}
+C {lab_wire.sym} -170 -990 0 0 {name=l28 sig_type=std_logic lab=VDD}
+C {devices/lab_pin.sym} 160 -880 0 1 {name=l31 lab=porst_buff}
+C {devices/lab_pin.sym} 910 -70 0 1 {name=l34 lab=voutb1}
+C {sky130_fd_pr/nfet_01v8_lvt.sym} 1040 -40 0 0 {name=M15
+L=2
+W=8
+nf=1
+mult=8
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8_lvt
+spiceprefix=X
+}
+C {sky130_fd_pr/nfet_01v8_lvt.sym} 1040 -130 0 0 {name=M16
+L=2
+W=8
+nf=1
+mult=8
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8_lvt
+spiceprefix=X
+}
+C {sky130_fd_pr/nfet_01v8_lvt.sym} 1210 -40 0 0 {name=M17
+L=2
+W=8
+nf=1
+mult=8
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8_lvt
+spiceprefix=X
+}
+C {sky130_fd_pr/nfet_01v8_lvt.sym} 1210 -130 0 0 {name=M18
+L=2
+W=8
+nf=1
+mult=8
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8_lvt
+spiceprefix=X
+}
+C {opin.sym} 1060 -200 0 0 {name=p1 lab=Iout0}
+C {devices/lab_pin.sym} 1170 -40 0 0 {name=l36 lab=voutb1}
+C {devices/lab_pin.sym} 1170 -130 0 0 {name=l37 lab=voutb2}
+C {sky130_fd_pr/cap_mim_m3_1.sym} 160 -810 2 0 {name=C_porst model=cap_mim_m3_1 W=23 L=5.8 MF=1 spiceprefix=X}
+C {iopin.sym} -1270 -670 0 1 {name=p2 lab=VDD}
+C {iopin.sym} -1310 -10 0 1 {name=p3 lab=VSS}
+C {devices/lab_pin.sym} -80 -780 3 0 {name=l1 lab=VSS}
+C {devices/lab_pin.sym} 160 -750 3 0 {name=l16 lab=VSS}
+C {devices/lab_pin.sym} 110 -860 3 0 {name=l17 lab=VSS}
+C {devices/lab_pin.sym} -860 -460 0 0 {name=l3 lab=VSS}
+C {devices/lab_pin.sym} 440 -320 0 0 {name=l9 lab=VSS}
+C {opin.sym} 1230 -200 0 0 {name=p4 lab=Iout1}
+C {sky130_fd_pr/nfet_01v8_lvt.sym} 1380 -40 0 0 {name=M19
+L=2
+W=8
+nf=1
+mult=8
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8_lvt
+spiceprefix=X
+}
+C {sky130_fd_pr/nfet_01v8_lvt.sym} 1380 -130 0 0 {name=M20
+L=2
+W=8
+nf=1
+mult=8
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8_lvt
+spiceprefix=X
+}
+C {devices/lab_pin.sym} 1340 -40 0 0 {name=l13 lab=voutb1}
+C {devices/lab_pin.sym} 1340 -130 0 0 {name=l20 lab=voutb2}
+C {opin.sym} 1400 -200 0 0 {name=p5 lab=Iout2}
+C {ipin.sym} -250 -880 0 0 {name=p6 lab=porst}
+C {opin.sym} 140 -400 0 0 {name=p7 lab=Vbg}
+C {sky130_fd_pr/nfet_01v8_lvt.sym} 1590 -40 0 0 {name=M21
+L=2
+W=8
+nf=1
+mult=8
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8_lvt
+spiceprefix=X
+}
+C {sky130_fd_pr/nfet_01v8_lvt.sym} 1590 -130 0 0 {name=M22
+L=2
+W=8
+nf=1
+mult=8
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8_lvt
+spiceprefix=X
+}
+C {devices/lab_pin.sym} 1550 -40 0 0 {name=l8 lab=voutb1}
+C {devices/lab_pin.sym} 1550 -130 0 0 {name=l12 lab=voutb2}
+C {opin.sym} 1610 -200 0 0 {name=p8 lab=Iout3}
+C {sky130_fd_pr/nfet_01v8_lvt.sym} 1760 -40 0 0 {name=M23
+L=2
+W=8
+nf=1
+mult=8
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8_lvt
+spiceprefix=X
+}
+C {sky130_fd_pr/nfet_01v8_lvt.sym} 1760 -130 0 0 {name=M24
+L=2
+W=8
+nf=1
+mult=8
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8_lvt
+spiceprefix=X
+}
+C {devices/lab_pin.sym} 1720 -40 0 0 {name=l22 lab=voutb1}
+C {devices/lab_pin.sym} 1720 -130 0 0 {name=l23 lab=voutb2}
+C {opin.sym} 1780 -200 0 0 {name=p9 lab=Iout4}
+C {sky130_fd_pr/nfet_01v8_lvt.sym} 1950 -40 0 0 {name=M25
+L=2
+W=8
+nf=1
+mult=8
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8_lvt
+spiceprefix=X
+}
+C {sky130_fd_pr/nfet_01v8_lvt.sym} 1950 -130 0 0 {name=M26
+L=2
+W=8
+nf=1
+mult=8
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8_lvt
+spiceprefix=X
+}
+C {devices/lab_pin.sym} 1910 -40 0 0 {name=l27 lab=voutb1}
+C {devices/lab_pin.sym} 1910 -130 0 0 {name=l30 lab=voutb2}
+C {opin.sym} 1970 -200 0 0 {name=p10 lab=Iout5}
+C {sky130_fd_pr/nfet_01v8_lvt.sym} 2120 -40 0 0 {name=M27
+L=2
+W=8
+nf=1
+mult=8
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8_lvt
+spiceprefix=X
+}
+C {sky130_fd_pr/nfet_01v8_lvt.sym} 2120 -130 0 0 {name=M28
+L=2
+W=8
+nf=1
+mult=8
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8_lvt
+spiceprefix=X
+}
+C {devices/lab_pin.sym} 2080 -40 0 0 {name=l32 lab=voutb1}
+C {devices/lab_pin.sym} 2080 -130 0 0 {name=l33 lab=voutb2}
+C {opin.sym} 2140 -200 0 0 {name=p11 lab=Iout6}
+C {sky130_fd_pr/res_xhigh_po_5p73.sym} 200 -160 3 0 {name=Rref_xhigh
+W=5.73
+L=106
+model=res_xhigh_po_5p73
+spiceprefix=X
+mult=1}
+C {sky130_fd_pr/res_xhigh_po_5p73.sym} 260 -160 3 0 {name=Rref_xhigh1
+W=5.73
+L=106
+model=res_xhigh_po_5p73
+spiceprefix=X
+mult=1}
+C {sky130_fd_pr/res_xhigh_po_5p73.sym} 320 -160 3 0 {name=Rref_xhigh2
+W=5.73
+L=106
+model=res_xhigh_po_5p73
+spiceprefix=X
+mult=1}
+C {sky130_fd_pr/res_xhigh_po_5p73.sym} 380 -160 3 0 {name=Rref_xhigh3
+W=5.73
+L=106
+model=res_xhigh_po_5p73
+spiceprefix=X
+mult=1}
+C {sky130_fd_pr/res_xhigh_po_5p73.sym} 440 -160 3 0 {name=Rref_xhigh4
+W=5.73
+L=106
+model=res_xhigh_po_5p73
+spiceprefix=X
+mult=1}
+C {sky130_fd_pr/res_high_po_1p41.sym} 0 -300 0 0 {name=R4
+W=1.41
+L=42.39
+model=res_high_po_1p41
+spiceprefix=X
+mult=1}
+C {sky130_fd_pr/res_high_po_1p41.sym} -510 -200 0 0 {name=R3
+W=1.41
+L=8.1
+model=res_high_po_1p41
+spiceprefix=X
+mult=1}
+C {sky130_fd_pr/res_high_po_1p41.sym} 110 -880 3 0 {name=R_porst
+W=1.41
+L=16
+model=res_high_po_1p41
+spiceprefix=X
+mult=1}
+C {devices/lab_pin.sym} 1050 -380 0 0 {name=l38 lab=VSS}
+C {sky130_fd_pr/res_high_po_1p41.sym} 580 -80 3 0 {name=Rref_high1
+W=1.41
+L=47.5
+model=res_high_po_1p41
+spiceprefix=X
+mult=1}
+C {sky130_fd_pr/res_high_po_1p41.sym} 500 -80 3 0 {name=Rref_high2
+W=1.41
+L=104
+model=res_high_po_1p41
+spiceprefix=X
+mult=1}
+C {sky130_fd_pr/nfet_01v8_lvt.sym} 1340 -340 0 0 {name=M1
+L=2
+W=8
+nf=1
+mult=512
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8_lvt
+spiceprefix=X
+}
+C {sky130_fd_pr/nfet_01v8_lvt.sym} 1340 -430 0 0 {name=M2
+L=2
+W=8
+nf=1
+mult=512
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8_lvt
+spiceprefix=X
+}
+C {devices/lab_pin.sym} 1290 -310 0 0 {name=l39 lab=VSS}
+C {sky130_fd_pr/pfet_01v8_lvt.sym} 1530 -550 0 0 {name=M3
+L=1
+W=1
+nf=1
+mult=80
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=pfet_01v8_lvt
+spiceprefix=X
+}
+C {devices/lab_wire.sym} 1550 -610 0 1 {name=l40 lab=VDD}
+C {sky130_fd_pr/nfet_01v8.sym} -240 -420 0 0 {name=Mpdn
+L=0.5
+W=1.5
+nf=1 
+mult=1
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8
+spiceprefix=X
+}
+C {sky130_fd_pr/pnp_05v5.sym} 1110 -430 0 1 {name=Q4
+model="pnp_05v5_W3p40L3p40 m=14"
+spiceprefix=X
+}
+C {opamp_realcomp3_usefinger.sym} -740 -460 1 1 {name=x1}
+C {opamp_realcomp3_usefinger.sym} 440 -420 0 0 {name=x2}
diff --git a/xschem/BGR_lvs.sym b/xschem/BGR_lvs.sym
new file mode 100644
index 0000000..3fd8ecc
--- /dev/null
+++ b/xschem/BGR_lvs.sym
@@ -0,0 +1,61 @@
+v {xschem version=3.0.0 file_version=1.2 }
+G {}
+K {type=subcircuit
+format="@name @pinlist @symname"
+template="name=X1"}
+V {}
+S {}
+E {}
+L 4 170 -120 190 -120 {}
+L 4 290 -270 310 -270 {}
+L 4 290 -250 310 -250 {}
+L 4 290 -240 310 -240 {}
+L 4 290 -230 310 -230 {}
+L 4 220 -300 220 -280 {}
+L 4 220 -40 220 -20 {}
+L 4 190 -210 190 -120 {}
+L 4 190 -280 290 -280 {}
+L 4 290 -210 290 -40 {}
+L 4 190 -40 290 -40 {}
+L 4 190 -120 190 -40 {}
+L 4 190 -280 190 -210 {}
+L 4 290 -280 290 -210 {}
+L 4 290 -220 310 -220 {}
+L 4 290 -210 310 -210 {}
+L 4 290 -200 310 -200 {}
+L 4 290 -190 310 -190 {}
+B 5 167.5 -122.5 172.5 -117.5 {name=porst
+dir=in}
+B 5 217.5 -302.5 222.5 -297.5 {name=VDD
+dir=inout}
+B 5 217.5 -22.5 222.5 -17.5 {name=VSS
+dir=inout}
+B 5 307.5 -272.5 312.5 -267.5 {name=Vbg
+dir=out}
+B 5 307.5 -252.5 312.5 -247.5 {name=Iout0
+dir=out}
+B 5 307.5 -242.5 312.5 -237.5 {name=Iout1
+dir=out}
+B 5 307.5 -232.5 312.5 -227.5 {name=Iout2
+dir=out}
+B 5 307.5 -222.5 312.5 -217.5 {name=Iout3
+dir=out}
+B 5 307.5 -212.5 312.5 -207.5 {name=Iout4
+dir=out}
+B 5 307.5 -202.5 312.5 -197.5 {name=Iout5
+dir=out}
+B 5 307.5 -192.5 312.5 -187.5 {name=Iout6
+dir=out}
+T {porst} 195 -124 0 0 0.2 0.2 {}
+T {Vbg} 265 -274 0 0 0.2 0.2 {}
+T {Iout0} 265 -254 0 0 0.1 0.1 {}
+T {Iout1} 265 -244 0 0 0.1 0.1 {}
+T {Iout2} 265 -234 0 0 0.1 0.1 {}
+T {VSS} 205 -64 0 0 0.2 0.2 {}
+T {VDD} 205 -204 0 0 0.2 0.2 {}
+T {@name} 295 -72 0 0 0.2 0.2 {}
+T {@symname} 295 -52 0 0 0.2 0.2 {}
+T {Iout3} 265 -224 0 0 0.1 0.1 {}
+T {Iout4} 265 -214 0 0 0.1 0.1 {}
+T {Iout5} 265 -204 0 0 0.1 0.1 {}
+T {Iout6} 265 -194 0 0 0.1 0.1 {}
diff --git a/xschem/opamp_realcomp3_usefinger.sch b/xschem/opamp_realcomp3_usefinger.sch
new file mode 100644
index 0000000..33f345d
--- /dev/null
+++ b/xschem/opamp_realcomp3_usefinger.sch
@@ -0,0 +1,188 @@
+v {xschem version=3.0.0 file_version=1.2 }
+G {}
+K {}
+V {}
+S {}
+E {}
+T {10u} 540 -440 0 0 0.4 0.4 {}
+T {10u} 330 -440 0 0 0.4 0.4 {}
+T {100u} 740 -440 0 0 0.4 0.4 {}
+N 360 -170 360 -140 { lab=ppair_gate}
+N 450 -140 540 -140 { lab=ppair_gate}
+N 540 -170 540 -140 { lab=ppair_gate}
+N 450 -60 470 -60 { lab=vss}
+N 470 -60 470 0 { lab=vss}
+N 450 -140 450 -90 { lab=ppair_gate}
+N 470 -200 540 -200 { lab=vss}
+N 470 -200 470 -60 { lab=vss}
+N 680 -60 720 -60 { lab=bias_0p7}
+N 680 -110 680 -60 { lab=bias_0p7}
+N 380 -110 680 -110 { lab=bias_0p7}
+N 380 -60 410 -60 { lab=bias_0p7}
+N 380 -110 380 -60 { lab=bias_0p7}
+N 450 -30 450 -0 { lab=vss}
+N 360 -310 360 -230 { lab=ppair_gate}
+N 400 -340 500 -340 { lab=ppair_gate}
+N 540 -280 540 -230 { lab=first_stage_out}
+N 540 -340 560 -340 { lab=vdd}
+N 560 -400 560 -340 { lab=vdd}
+N 540 -400 560 -400 { lab=vdd}
+N 340 -400 340 -340 { lab=vdd}
+N 340 -340 360 -340 { lab=vdd}
+N 360 -400 360 -370 { lab=vdd}
+N 540 -400 540 -370 { lab=vdd}
+N 760 -400 760 -310 { lab=vdd}
+N 560 -400 760 -400 { lab=vdd}
+N 760 -250 760 -90 { lab=out}
+N 760 -280 780 -280 { lab=vdd}
+N 780 -400 780 -280 { lab=vdd}
+N 760 -400 780 -400 { lab=vdd}
+N 760 -60 780 -60 { lab=vss}
+N 780 -60 780 0 { lab=vss}
+N 760 -30 760 0 { lab=vss}
+N 450 -0 470 0 { lab=vss}
+N 360 -140 450 -140 { lab=ppair_gate}
+N 360 -200 470 -200 { lab=vss}
+N 340 -400 360 -400 { lab=vdd}
+N 360 -400 540 -400 { lab=vdd}
+N 760 0 780 0 { lab=vss}
+N 470 0 760 0 { lab=vss}
+N 540 -310 540 -280 { lab=first_stage_out}
+N 300 -200 320 -200 { lab=in_n}
+N 450 -340 450 -280 { lab=ppair_gate}
+N 360 -280 450 -280 { lab=ppair_gate}
+N 580 -200 600 -200 { lab=in_p}
+N 300 -110 380 -110 {
+lab=bias_0p7}
+N 670 -280 720 -280 {
+lab=first_stage_out}
+N 540 -280 670 -280 {
+lab=first_stage_out}
+N 760 -200 810 -200 {
+lab=out}
+N 690 -280 690 -250 {
+lab=first_stage_out}
+N 690 -190 690 -170 {
+lab=#net1}
+N 690 -170 690 -150 {
+lab=#net1}
+N 750 -150 760 -150 {
+lab=out}
+N 720 -170 780 -170 {
+lab=vss}
+N 780 -170 780 -60 {
+lab=vss}
+C {sky130_fd_pr/nfet_01v8_lvt.sym} 340 -200 0 0 {name=M_diff_n
+L=1
+W=4.5
+nf=1
+mult=4
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8_lvt
+spiceprefix=X
+}
+C {sky130_fd_pr/nfet_01v8_lvt.sym} 560 -200 0 1 {name=M_diff_n1
+L=1
+W=4.5
+nf=1
+mult=4
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8_lvt
+spiceprefix=X
+}
+C {sky130_fd_pr/nfet_01v8_lvt.sym} 430 -60 0 0 {name=M_tail
+L=2
+W=10
+nf=5
+mult=2
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8_lvt
+spiceprefix=X
+}
+C {sky130_fd_pr/nfet_01v8_lvt.sym} 740 -60 0 0 {name=M_actload
+L=2
+W=15
+nf=5
+mult=4
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=nfet_01v8_lvt
+spiceprefix=X
+}
+C {sky130_fd_pr/pfet_01v8_lvt.sym} 520 -340 0 0 {name=M_ppair_p
+L=1
+W=8
+nf=4
+mult=4
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=pfet_01v8_lvt
+spiceprefix=X
+}
+C {sky130_fd_pr/pfet_01v8_lvt.sym} 380 -340 0 1 {name=M_ppair_p1
+L=1
+W=8
+nf=4
+mult=4
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=pfet_01v8_lvt
+spiceprefix=X
+}
+C {sky130_fd_pr/pfet_01v8_lvt.sym} 740 -280 0 0 {name=M_cs
+L=0.5
+W=84
+nf=14
+mult=4
+ad="'int((nf+1)/2) * W/nf * 0.29'" 
+pd="'2*int((nf+1)/2) * (W/nf + 0.29)'"
+as="'int((nf+2)/2) * W/nf * 0.29'" 
+ps="'2*int((nf+2)/2) * (W/nf + 0.29)'"
+nrd="'0.29 / W'" nrs="'0.29 / W'"
+sa=0 sb=0 sd=0
+model=pfet_01v8_lvt
+spiceprefix=X
+}
+C {devices/iopin.sym} 340 -400 0 1 {name=p1 lab=vdd}
+C {devices/iopin.sym} 450 0 0 1 {name=p2 lab=vss}
+C {devices/ipin.sym} 300 -200 0 0 {name=p3 lab=in_n}
+C {devices/ipin.sym} 600 -200 0 1 {name=p4 lab=in_p}
+C {devices/opin.sym} 810 -200 0 0 {name=p5 lab=out}
+C {devices/ipin.sym} 300 -110 0 0 {name=p6 lab=bias_0p7}
+C {sky130_fd_pr/cap_mim_m3_1.sym} 690 -220 0 0 {name=C1 model=cap_mim_m3_1 W=16 L=21.4 MF=1 spiceprefix=X}
+C {sky130_fd_pr/res_high_po_2p85.sym} 720 -150 1 0 {name=R1
+W=2.85
+L=12.1
+model=res_high_po_2p85
+spiceprefix=X
+mult=1}
+C {lab_wire.sym} 630 -280 1 0 {name=l1 sig_type=std_logic lab=first_stage_out}
+C {lab_wire.sym} 410 -280 2 0 {name=l2 sig_type=std_logic lab=ppair_gate}
+C {lab_wire.sym} 540 -140 2 0 {name=l3 sig_type=std_logic lab=diffpair_source}
diff --git a/xschem/opamp_realcomp3_usefinger.sym b/xschem/opamp_realcomp3_usefinger.sym
new file mode 100644
index 0000000..9bc07ed
--- /dev/null
+++ b/xschem/opamp_realcomp3_usefinger.sym
@@ -0,0 +1,32 @@
+v {xschem version=3.0.0 file_version=1.2 }
+G {}
+K {type=subcircuit
+format="@name @pinlist @symname"
+template="name=x1"
+}
+V {}
+S {}
+E {}
+L 4 -100 20 -80 20 {}
+L 4 -100 -20 -80 -20 {}
+L 4 50 0 70 0 {}
+L 4 -30 -80 -30 -37 {}
+L 4 -80 -60 -80 60 {}
+L 4 -80 60 50 -0 {}
+L 4 -80 -60 50 -0 {}
+L 7 0 -80 0 -23 {}
+L 7 0 23 0 60 {}
+B 5 -2.5 -82.5 2.5 -77.5 {name=vdd dir=inout }
+B 5 -102.5 17.5 -97.5 22.5 {name=in_n dir=in }
+B 5 -102.5 -22.5 -97.5 -17.5 {name=in_p dir=in }
+B 5 67.5 -2.5 72.5 2.5 {name=out dir=out }
+B 5 -32.5 -82.5 -27.5 -77.5 {name=bias_0p7 dir=in }
+B 5 -2.5 57.5 2.5 62.5 {name=vss dir=inout }
+T {@symname} 29.5 34 0 0 0.3 0.3 {}
+T {@name} 35 18 0 0 0.2 0.2 {}
+T {vdd} 26 -75 0 1 0.2 0.2 {}
+T {in_n} -75 16 0 0 0.2 0.2 {}
+T {in_p} -75 -24 0 0 0.2 0.2 {}
+T {out} 34 -7 0 1 0.2 0.2 {}
+T {bias_0p7} -36 -65 2 0 0.2 0.2 {}
+T {vss} 4 55 2 1 0.2 0.2 {}
diff --git a/xschem/xschemrc b/xschem/xschemrc
deleted file mode 100644
index ca6e33e..0000000
--- a/xschem/xschemrc
+++ /dev/null
@@ -1,296 +0,0 @@
-#### xschemrc system configuration file
-
-#### values may be overridden by user's ~/.xschem/xschemrc configuration file
-#### or by project-local ./xschemrc
-
-###########################################################################
-#### XSCHEM INSTALLATION DIRECTORY: XSCHEM_SHAREDIR
-###########################################################################
-#### Normally there is no reason to set this variable if using standard
-#### installation. Location of files is set at compile time but may be overridden
-#### with following line:
-# set XSCHEM_SHAREDIR $env(HOME)/share/xschem
-
-###########################################################################
-#### XSCHEM SYSTEM-WIDE DESIGN LIBRARY PATHS: XSCHEM_LIBRARY_PATH
-###########################################################################
-#### If unset xschem starts with XSCHEM_LIBRARY_PATH set to the default, typically:
-# /home/schippes/.xschem/xschem_library
-# /home/schippes/share/xschem/xschem_library/devices
-# /home/schippes/share/doc/xschem/examples
-# /home/schippes/share/doc/xschem/ngspice
-# /home/schippes/share/doc/xschem/logic
-# /home/schippes/share/doc/xschem/xschem_simulator
-# /home/schippes/share/doc/xschem/binto7seg
-# /home/schippes/share/doc/xschem/pcb
-# /home/schippes/share/doc/xschem/rom8k
-
-#### Allow user environment to override the path to the PDK
-if {[catch {set PDKPATH $env(PDKPATH)}]} {
-    set PDKPATH "/usr/share/pdk/sky130A"
-}
-#### Flush any previous definition
-set XSCHEM_LIBRARY_PATH {}
-#### include devices/*.sym
-append XSCHEM_LIBRARY_PATH ${XSCHEM_SHAREDIR}/xschem_library
-#### include skywater libraries. Here i use [pwd]. This works if i start xschem from here.
-append XSCHEM_LIBRARY_PATH :$env(PWD)
-append XSCHEM_LIBRARY_PATH :$PDKPATH/libs.tech/xschem
-# append XSCHEM_LIBRARY_PATH :/mnt/sda7/home/schippes/pdks/sky130A/libs.tech/xschem
-#### add ~/.xschem/xschem_library (USER_CONF_DIR is normally ~/.xschem)
-append XSCHEM_LIBRARY_PATH :$USER_CONF_DIR/xschem_library 
-
-###########################################################################
-#### SET CUSTOM COLORS FOR XSCHEM LIBRARIES MATCHING CERTAIN PATTERNS
-###########################################################################
-#### each line contains a dircolor(pattern) followed by a color
-#### color can be an ordinary name (grey, brown, blue) or a hex code {#77aaff}
-#### hex code must be enclosed in braces
-array unset dircolor
-set dircolor(sky130_fd_pr$) blue
-set dircolor(sky130_tests$) blue
-set dircolor(xschem_sky130$) blue
-set dircolor(xschem_library$) red
-set dircolor(devices$) red
-
-###########################################################################
-#### WINDOW TO OPEN ON STARTUP: XSCHEM_START_WINDOW
-###########################################################################
-#### Start without a design if no filename given on command line:
-#### To avoid absolute paths, use a path that is relative to one of the
-#### XSCHEM_LIBRARY_PATH directories. Default: empty
-set XSCHEM_START_WINDOW {sky130_tests/top.sch}
-
-###########################################################################
-#### DIRECTORY WHERE SIMULATIONS, NETLIST AND SIMULATOR OUTPUTS ARE PLACED
-###########################################################################
-#### If unset $USER_CONF_DIR/simulations is assumed (normally ~/.xschem/simulations) 
-# set netlist_dir $env(HOME)/.xschem/simulations
-set netlist_dir .
-
-###########################################################################
-#### CHANGE DEFAULT [] WITH SOME OTHER CHARACTERS FOR BUSSED SIGNALS 
-#### IN SPICE NETLISTS (EXAMPLE: DATA[7] --> DATA<7>) 
-###########################################################################
-#### default: empty (use xschem default, [ ])
-# set bus_replacement_char {<>}
-#### for XSPICE: replace square brackets as the are used for XSPICE vector nodes.
-# set bus_replacement_char {__} 
-
-###########################################################################
-#### SOME DEFAULT BEHAVIOR
-###########################################################################
-#### Allowed values:  spice, verilog, vhdl, tedax, default: spice
-# set netlist_type spice
-
-#### Some netlisting options (these are the defaults)
-# set hspice_netlist 1
-# set verilog_2001 1
-
-#### to use a fixed line with set change_lw to 0 and set some value to line_width
-#### these are the defaults
-# set line_width 0
-# set change_lw 1
-
-#### allow color postscript and svg exports. Default: 1, enable color
-# set color_ps 1
-
-#### initial size of xschem window you can specify also position with (wxh+x+y)
-#### this is the default:
-# set initial_geometry {900x600}
-
-#### if set to 0, when zooming out allow the viewport do drift toward the mouse position,
-#### allowing to move away by zooming / unzooming with mouse wheel
-#### default setting: 0
-# set unzoom_nodrift 0
-
-#### if set to 1 allow to place multiple components with same name.
-#### Warning: this is normally not allowed in any simulation netlist.
-#### default: 0, do not allow place multiple elements with same name (refdes)
-# set disable_unique_names 0
-
-#### if set to 1 continue drawing lines / wires after click
-#### default: 0
-# set persistent_command 1
-
-#### if set to 1 automatically join/trim wires while editing
-#### this may slow down on rally big designs. Can be disabled via menu 
-#### default: 0
-# set autotrim_wires 0
-
-#### set widget scaling (mainly for font display), this is useful on 4K displays
-#### default: unset (tk uses its default) > 1.0 ==> bigger 
-# set tk_scaling 1.7
-
-#### disable some symbol layers. Default: none, all layers are visible.
-# set enable_layer(5) 0 ;# example to disable pin red boxes
-
-#### enable to scale grid point size as done with lines at close zoom, default: 0
-# set big_grid_points 0
-
-###########################################################################
-#### EXPORT FORMAT TRANSLATORS, PNG AND PDF
-###########################################################################
-#### command to translate xpm to png; (assumes command takes source 
-#### and dest file as arguments, example: gm convert plot.xpm plot.png)
-#### default: {gm convert}
-# set to_png {gm convert}
-
-#### command to translate ps to pdf; (assumes command takes source
-#### and dest file as arguments, example: ps2pdf plot.ps plot.pdf)
-#### default: ps2pdf
-# set to_pdf ps2pdf
-set to_pdf {ps2pdf -dAutoRotatePages=/None}
-
-
-###########################################################################
-#### CUSTOM GRID / SNAP VALUE SETTINGS
-###########################################################################
-#### Warning: changing these values will likely break compatibility
-#### with existing symbol libraries. Defaults: grid 20, snap 10.
-# set grid 20
-# set snap 10
-
-###########################################################################
-#### CUSTOM COLORS  MAY BE DEFINED HERE
-###########################################################################
-#  set cadlayers 22
-#  set light_colors {
-#   "#ffffff" "#0044ee" "#aaaaaa" "#222222" "#229900"
-#   "#bb2200" "#00ccee" "#ff0000" "#888800" "#00aaaa"
-#   "#880088" "#00ff00" "#0000cc" "#666600" "#557755"
-#   "#aa2222" "#7ccc40" "#00ffcc" "#ce0097" "#d2d46b"
-#   "#ef6158" "#fdb200" }
-
-#  set dark_colors {
-#   "#000000" "#00ccee" "#3f3f3f" "#cccccc" "#88dd00"
-#   "#bb2200" "#00ccee" "#ff0000" "#ffff00" "#ffffff"
-#   "#ff00ff" "#00ff00" "#0000cc" "#aaaa00" "#aaccaa"
-#   "#ff7777" "#bfff81" "#00ffcc" "#ce0097" "#d2d46b"
-#   "#ef6158" "#fdb200" }
-
-###########################################################################
-#### CAIRO STUFF
-###########################################################################
-#### Scale all fonts by this number
-# set cairo_font_scale 1.0
-
-#### default for following two is 0.85 (xscale) and 0.88 (yscale) to 
-#### match cairo font spacing
-# set nocairo_font_xscale 1.0
-#### set nocairo_font_yscale 1.0
-
-#### Scale line spacing by this number
-# set cairo_font_line_spacing 1.0
-
-#### Specify a font
-# set cairo_font_name {Sans-Serif}
-# set svg_font_name {Sans-Serif}
-
-#### Lift up text by some zoom-corrected pixels for
-#### better compatibility wrt no cairo version.
-#### Useful values in the range [-1, 3]
-# set cairo_vert_correct 0
-# set nocairo_vert_correct 0
-
-###########################################################################
-#### KEYBINDINGS
-###########################################################################
-#### General format for specifying a replacement for a keybind
-#### Replace Ctrl-d with Escape (so you wont kill the program)
-# set replace_key(Control-d) Escape
-
-#### swap w and W keybinds; Always specify Shift for capital letters
-# set replace_key(Shift-W) w
-# set replace_key(w) Shift-W
-
-###########################################################################
-#### TERMINAL
-###########################################################################
-#### default for linux: xterm
-# set terminal {xterm -geometry 100x35 -fn 9x15 -bg black -fg white -cr white -ms white }
-#### lxterminal is not OK since it will not inherit env vars: 
-#### In order to reduce memory usage and increase the performance, all instances
-#### of the lxterminal are sharing a single process. LXTerminal is part of LXDE
-
-###########################################################################
-#### EDITOR
-###########################################################################
-#### editor must not detach from launching shell (-f mandatory for gvim)
-#### default for linux: gvim -f
-# set editor {gvim -f -geometry 90x28}
-# set editor { xterm -geometry 100x40 -e nano }
-# set editor { xterm -geometry 100x40 -e pico }
-
-#### For Windows
-# set editor {notepad.exe}
-
-###########################################################################
-#### SHOW ERC INFO WINDOW (erc errors, warnings etc)
-###########################################################################
-#### default: 0 (can be enabled by menu)
-# set show_infowindow 0
-
-###########################################################################
-#### CONFIGURE COMPUTER FARM JOB REDIRECTORS FOR SIMULATIONS
-###########################################################################
-#### RTDA NC
-# set computerfarm {nc run -Il}
-#### LSF BSUB
-# set computerfarm {bsub -Is}
-
-###########################################################################
-#### TCP CONNECTION WITH GAW
-###########################################################################
-#### set gaw address for socket connection: {host port}
-#### default: set to localhost, port 2020
-# set gaw_tcp_address {localhost 2020}
-
-###########################################################################
-#### XSCHEM LISTEN TO TCP PORT
-###########################################################################
-#### set xschem listening port; default: not enabled
-# set xschem_listen_port 2021
-
-###########################################################################
-#### BESPICE WAVE SOCKET CONNECTION
-###########################################################################
-#### set bespice wave listening port; default: not enabled
-set bespice_listen_port 2022
-
-
-
-###########################################################################
-#### UTILE SPICE STIMULI DESCRIPTION LANGUAGE AND TRANSLATOR
-###########################################################################
-#### default paths are set as shown here: 
-# set utile_gui_path ${XSCHEM_SHAREDIR}/utile/utile3
-# set utile_cmd_path ${XSCHEM_SHAREDIR}/utile/utile
-
-###########################################################################
-#### TCL FILES TO LOAD AT STARTUP
-###########################################################################
-#### list of tcl files to preload.
-# lappend tcl_files ${XSCHEM_SHAREDIR}/change_index.tcl
-lappend tcl_files ${XSCHEM_SHAREDIR}/ngspice_backannotate.tcl
-lappend tcl_files $PDKPATH/libs.tech/xschem/scripts/sky130_models.tcl
-###########################################################################
-#### XSCHEM TOOLBAR
-###########################################################################
-#### default: not enabled.
-# set toolbar_visible 1
-# set toolbar_horiz   1
-
-###########################################################################
-#### SKYWATER PDK SPECIFIC VARIABLES
-###########################################################################
-
-## (spice patched) skywater-pdk install
-# set SKYWATER_MODELS ~/skywater-pdk/libraries/sky130_fd_pr_ngspice/latest
-# set SKYWATER_STDCELLS ~/skywater-pdk/libraries/sky130_fd_sc_hd/latest
-
-## opencircuitdesign pdks install. You need to change these to point to your open_pdks installation
-# set SKYWATER_MODELS /usr/local/share/pdk/sky130A/libs.tech/ngspice
-# set SKYWATER_STDCELLS /usr/local/share/pdk/sky130A/libs.ref/sky130_fd_sc_hd/spice
-set SKYWATER_MODELS $PDKPATH/libs.tech/ngspice
-set SKYWATER_STDCELLS $PDKPATH/libs.ref/sky130_fd_sc_hd/spice