| v {xschem version=2.9.8 file_version=1.2} |
| G {} |
| K {} |
| V {} |
| S {} |
| E {} |
| N 280 -260 430 -260 { lab=#net1} |
| N 280 -380 420 -380 { lab=#net1} |
| N 670 -400 670 -260 { lab=fb_op} |
| N 600 -400 670 -400 { lab=fb_op} |
| N 520 -340 520 0 { lab=GND} |
| N 170 -420 170 -340 { lab=#net2} |
| N 280 -380 280 -260 { lab=#net1} |
| N 0 -380 0 0 { lab=GND} |
| N 280 -0 520 0 { lab=GND} |
| N 490 -490 490 -460 { lab=#net3} |
| N 450 -490 490 -490 { lab=#net3} |
| N 450 -530 450 -490 { lab=#net3} |
| N 520 -620 520 -460 { lab=#net4} |
| N 450 -620 520 -620 { lab=#net4} |
| N 0 -620 0 -440 { lab=#net4} |
| N 450 -620 450 -590 { lab=#net4} |
| N 170 -280 170 0 { lab=GND} |
| N 280 -140 280 -90 { lab=#net5} |
| N 280 -260 280 -200 { lab=#net1} |
| N 280 -30 280 -0 { lab=GND} |
| N 0 0 170 0 { lab=GND} |
| N 170 0 280 -0 { lab=GND} |
| N 0 -620 450 -620 { lab=#net4} |
| N 490 -260 670 -260 { lab=fb_op} |
| N 170 -420 420 -420 { lab=#net2} |
| N 1160 -30 1160 0 {lab=GND} |
| N 1160 -210 1160 -90 {lab=fb_beta} |
| N 1250 -630 1320 -630 {lab=ctat} |
| N 1180 -60 1220 -60 { lab=GND} |
| N 1220 -60 1220 0 { lab=GND} |
| N 1160 0 1220 0 {lab=GND} |
| N 1160 -350 1160 -210 { lab=fb_beta} |
| N 1160 -210 1260 -210 { lab=fb_beta} |
| N 1220 0 1290 0 {lab=GND} |
| N 1160 -480 1160 -410 { lab=#net6} |
| N 1250 -550 1280 -550 { lab=cas} |
| N 1280 -550 1300 -550 { lab=cas} |
| N 520 -0 1160 -0 { lab=GND} |
| N 1160 -800 1160 -690 { lab=#net4} |
| N 520 -800 1160 -800 { lab=#net4} |
| N 520 -800 520 -610 { lab=#net4} |
| N 1350 -550 1350 -490 { lab=cas} |
| N 1300 -550 1350 -550 { lab=cas} |
| N 1350 -430 1350 -10 { lab=GND} |
| N 1290 0 1350 -0 { lab=GND} |
| N 1350 -10 1350 -0 { lab=GND} |
| N 1520 -630 1520 -600 { lab=ctat} |
| N 1320 -630 1520 -630 { lab=ctat} |
| N 1520 -540 1520 -0 { lab=GND} |
| N 1350 0 1520 -0 { lab=GND} |
| N 1340 -800 1340 -760 { lab=#net4} |
| N 1160 -800 1340 -800 { lab=#net4} |
| N 1340 -700 1340 -630 { lab=ctat} |
| C {bandgap_opamp/bandgap_opamp.sym} 520 -400 0 0 {name=x2} |
| C {res.sym} 460 -260 1 0 {name=R3 |
| value=1u |
| device=resistor |
| m=1 |
| ac=1G} |
| C {res.sym} 280 -170 2 0 {name=R4 |
| value=1G |
| device=resistor |
| m=1 |
| ac=1u} |
| C {vsource.sym} 280 -60 0 1 {name=Vin value="dc=0 ac=1"} |
| C {vsource.sym} 0 -410 0 0 {name=Vdd value=\{vdd\}} |
| C {vsource.sym} 170 -310 0 0 {name=Vdiode value=0.7} |
| C {isource.sym} 450 -560 0 0 {name=I0 value=10u} |
| C {gnd.sym} 0 0 0 0 {name=l15 lab=GND} |
| C {code.sym} 630 -590 0 0 {name=simulation only_toplevel=false value=" |
| .temp 27 |
| |
| .lib "sky130_fd_pr/models/sky130.lib.spice" tt |
| .include sky130_fd_pr/models/sky130_fd_pr__model__pnp.model.spice |
| |
| .param vdd=1.8 |
| |
| .save all |
| .options savecurrents |
| |
| .op |
| .ac dec 10 1 1G |
| |
| .control |
| run |
| setplot ac1 |
| set units=degrees |
| gnuplot bandgap_core_stability3 db(fb_op) ph(fb_op) db(1/fb_beta) ph(1/fb_beta) |
| .endc |
| "} |
| C {lab_wire.sym} 600 -400 0 1 {name=l16 sig_type=std_logic lab=fb_op} |
| C {lab_wire.sym} 1250 -630 0 1 {name=l3 sig_type=std_logic lab=ctat} |
| C {lab_wire.sym} 1250 -550 0 1 {name=l6 sig_type=std_logic lab=cas} |
| C {spice_probe.sym} 1160 -210 0 0 {name=p8 analysis=tran voltage=0.7373} |
| C {spice_probe.sym} 1250 -550 0 0 {name=p12 analysis=tran voltage=0.5679} |
| C {bandgap_cascurr_cell/bandgap_cascurr_cell.sym} 1160 -590 0 1 {name=x7 m=8} |
| C {ammeter.sym} 1160 -380 0 0 {name=v6 current=1.2160e-05} |
| C {lab_wire.sym} 1200 -210 0 1 {name=l1 sig_type=std_logic lab=fb_beta} |
| C {res.sym} 1160 -60 2 0 {name=R2 |
| value=49.15k |
| device=resistor |
| m=1 |
| ac=49.15k} |
| C {vsource.sym} 1350 -460 0 0 {name=Vdiode1 value=0.5679} |
| C {vsource.sym} 1520 -570 0 1 {name=Vin1 value="dc=0 ac=1"} |
