xschem/tb/opamp/no_se_folded_ota_np_ab.sch

v {xschem version=3.0.0 file_version=1.2 }
G {}
K {}
V {}
S {}
E {}
P 4 5 0 0 0 -700 990 -700 990 0 0 0 {}
N 170 -320 170 -300 { lab=vss}
N 170 -320 200 -320 { lab=vss}
N 170 -240 170 -210 { lab=GND}
N 70 -320 70 -300 { lab=vdd}
N 70 -320 100 -320 { lab=vdd}
N 70 -240 70 -210 { lab=GND}
N 600 -290 600 -260 { lab=vss}
N 600 -400 600 -370 { lab=vdd}
N 500 -90 500 -60 { lab=vss}
N 360 -230 360 -200 { lab=GND}
N 500 -200 620 -200 { lab=fb}
N 650 -330 750 -330 { lab=out}
N 750 -330 750 -200 { lab=out}
N 680 -200 750 -200 { lab=out}
N 810 -240 810 -210 { lab=vss}
N 810 -330 810 -300 { lab=out}
N 750 -330 810 -330 { lab=out}
N 360 -360 360 -290 { lab=in}
N 360 -360 530 -360 { lab=in}
N 500 -300 500 -200 { lab=fb}
N 500 -300 530 -300 { lab=fb}
N 500 -190 500 -150 { lab=fb}
N 500 -200 500 -190 { lab=fb}
N 580 -420 580 -380 { lab=bias}
N 530 -420 580 -420 { lab=bias}
N 300 -590 340 -590 { lab=vdd}
N 300 -660 300 -620 { lab=vdd}
N 200 -590 260 -590 { lab=vb}
N 120 -590 160 -590 { lab=vdd}
N 160 -660 160 -620 { lab=vdd}
N 230 -590 230 -540 { lab=vb}
N 160 -540 230 -540 { lab=vb}
N 160 -560 160 -540 { lab=vb}
N 160 -540 160 -520 { lab=vb}
N 160 -460 160 -430 { lab=vss}
N 160 -660 300 -660 { lab=vdd}
N 300 -560 300 -550 { lab=#net1}
N 300 -490 300 -400 { lab=bias}
N 900 -330 900 -300 { lab=out}
N 810 -330 900 -330 { lab=out}
N 900 -240 900 -210 { lab=vss}
C {devices/vsource.sym} 170 -270 0 0 {name=Vss value=0
}
C {devices/gnd.sym} 170 -210 0 0 {name=l1 lab=GND}
C {devices/vsource.sym} 70 -270 0 0 {name=Vdd value=1.8
}
C {devices/gnd.sym} 70 -210 0 0 {name=l2 lab=GND}
C {devices/lab_wire.sym} 100 -320 0 0 {name=l3 sig_type=std_logic lab=vdd}
C {devices/lab_wire.sym} 200 -320 0 0 {name=l4 sig_type=std_logic lab=vss}
C {devices/lab_wire.sym} 600 -290 3 0 {name=l5 sig_type=std_logic lab=vss}
C {devices/lab_wire.sym} 600 -400 3 0 {name=l6 sig_type=std_logic lab=vdd}
C {devices/vsource.sym} 360 -260 0 0 {name=Vin value="dc \{vcm\} ac 1"
}
C {devices/code.sym} 160 -130 0 0 {name=NGSPICE
only_toplevel=true
value=".param MC_SWITCH=0
.param vcm=0.9

.control
save all
noise v(out,vss) vin dec 10 100 1000e3 1
print inoise_total
print onoise_total
setplot noise1
set wr_vecnames
wrdata noise.csv all
plot inoise_spectrum
plot onoise_spectrum

.endc
"}
C {devices/capa.sym} 500 -120 0 0 {name=c0 m=1 value=1}
C {devices/lab_wire.sym} 500 -90 3 0 {name=l13 sig_type=std_logic lab=vss}
C {devices/lab_wire.sym} 560 -420 0 0 {name=l16 sig_type=std_logic lab=bias}
C {devices/gnd.sym} 360 -200 0 0 {name=l8 lab=GND}
C {devices/lab_wire.sym} 530 -300 0 0 {name=l7 sig_type=std_logic lab=fb}
C {devices/res.sym} 650 -200 1 0 {name=r1 m=1 value=10e9 footprint=res10 device=resistor}
C {devices/capa.sym} 810 -270 0 0 {name=c1 m=1 value=10e-12
}
C {devices/lab_wire.sym} 810 -240 3 0 {name=l10 sig_type=std_logic lab=vss}
C {devices/code.sym} 20 -130 0 0 {name=CORNERS
only_toplevel=true
format="tcleval( @value )"
spice_ignore="tcleval($cmdline_ignore)"
value="* FET CORNERS
.include \\\\$::SKYWATER_MODELS\\\\/corners/tt.spice
*.include \\\\$::SKYWATER_MODELS\\\\/corners/ff.spice
*.include \\\\$::SKYWATER_MODELS\\\\/corners/ss.spice
*.include \\\\$::SKYWATER_MODELS\\\\/corners/sf.spice
*.include \\\\$::SKYWATER_MODELS\\\\/corners/fs.spice

* TT + R + C
*.include \\\\$::SKYWATER_MODELS\\\\/corners/tt_rmax_cmax.spice
*.include \\\\$::SKYWATER_MODELS\\\\/corners/tt_rmin_cmin.spice
*.include \\\\$::SKYWATER_MODELS\\\\/corners/tt_rmax_cmin.spice
*.include \\\\$::SKYWATER_MODELS\\\\/corners/tt_rmin_cmax.spice

* FF + R + C
*.include \\\\$::SKYWATER_MODELS\\\\/corners/ff_rmax_cmax.spice
*.include \\\\$::SKYWATER_MODELS\\\\/corners/ff_rmin_cmin.spice
*.include \\\\$::SKYWATER_MODELS\\\\/corners/ff_rmax_cmin.spice
*.include \\\\$::SKYWATER_MODELS\\\\/corners/ff_rmin_cmax.spice


* SS + R + C
*.include \\\\$::SKYWATER_MODELS\\\\/corners/ss_rmax_cmax.spice
*.include \\\\$::SKYWATER_MODELS\\\\/corners/ss_rmin_cmin.spice
*.include \\\\$::SKYWATER_MODELS\\\\/corners/ss_rmax_cmin.spice
*.include \\\\$::SKYWATER_MODELS\\\\/corners/ss_rmin_cmax.spice

* SF + R + C
*.include \\\\$::SKYWATER_MODELS\\\\/corners/sf_rmax_cmax.spice
*.include \\\\$::SKYWATER_MODELS\\\\/corners/sf_rmin_cmin.spice
*.include \\\\$::SKYWATER_MODELS\\\\/corners/sf_rmax_cmin.spice
*.include \\\\$::SKYWATER_MODELS\\\\/corners/sf_rmin_cmax.spice

* FS + R + C
*.include \\\\$::SKYWATER_MODELS\\\\/corners/fs_rmax_cmax.spice
*.include \\\\$::SKYWATER_MODELS\\\\/corners/fs_rmin_cmin.spice
*.include \\\\$::SKYWATER_MODELS\\\\/corners/fs_rmax_cmin.spice
*.include \\\\$::SKYWATER_MODELS\\\\/corners/fs_rmin_cmax.spice
"}
C {devices/lab_wire.sym} 650 -330 0 1 {name=l11 sig_type=std_logic lab=out}
C {devices/lab_wire.sym} 530 -360 0 0 {name=l12 sig_type=std_logic lab=in}
C {devices/lab_wire.sym} 300 -440 3 0 {name=l20 sig_type=std_logic lab=bias}
C {devices/lab_wire.sym} 340 -590 0 0 {name=l21 sig_type=std_logic lab=vdd}
C {devices/isource.sym} 160 -490 0 0 {name=i1 value=250n
}
C {devices/lab_wire.sym} 120 -590 0 1 {name=l22 sig_type=std_logic lab=vdd}
C {devices/lab_wire.sym} 160 -460 3 0 {name=l24 sig_type=std_logic lab=vss}
C {devices/lab_wire.sym} 220 -660 0 1 {name=l25 sig_type=std_logic lab=vdd}
C {devices/lab_wire.sym} 220 -590 0 1 {name=l26 sig_type=std_logic lab=vb}
C {devices/ammeter.sym} 300 -520 0 0 {name=vib}
C {sky130_primitives/pfet_01v8.sym} 280 -590 0 0 {name=M1
L=0.5
W=1
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=pfet_01v8
spiceprefix=X}
C {sky130_primitives/pfet_01v8.sym} 180 -590 0 1 {name=M2
L=0.5
W=1
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=pfet_01v8
spiceprefix=X}
C {devices/res.sym} 900 -270 2 1 {name=r2 m=1 value=1e6
}
C {devices/lab_wire.sym} 900 -240 3 0 {name=l9 sig_type=std_logic lab=vss}
C {opamp/se_folded_cascode_np_ab.sym} 680 -330 0 0 {name=xamp
}