| **.subckt n_diffamp PLUS MINUS OUT NBIAS |
| *.ipin PLUS |
| *.ipin MINUS |
| *.opin OUT |
| *.ipin NBIAS |
| XM1 net1 PLUS S GND sky130_fd_pr__nfet_01v8_lvt L=0.3 W=2 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29' |
| + pd='2*int((nf+1)/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 mult=1 m=1 |
| XM2 OUT MINUS S GND sky130_fd_pr__nfet_01v8_lvt L=0.3 W=2 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29' |
| + pd='2*int((nf+1)/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 mult=1 m=1 |
| XM3 OUT net1 VDD VDD sky130_fd_pr__pfet_01v8_lvt L=0.8 W=4 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29' |
| + pd='2*int((nf+1)/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 mult=1 m=1 |
| XM4 net1 net1 VDD VDD sky130_fd_pr__pfet_01v8_lvt L=0.8 W=4 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29' |
| + pd='2*int((nf+1)/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 mult=1 m=1 |
| XM5 net2 NBIAS GND GND sky130_fd_pr__nfet_01v8 L=1.2 W=0.7 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29' |
| + pd='2*int((nf+1)/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 mult=1 m=1 |
| XR1 GND S GND sky130_fd_pr__res_xhigh_po_0p35 L=50 mult=1 m=1 |
| V1 PLUS GND 0.7 |
| V2 NBIAS GND 0.9 |
| V3 VDD GND 1.8 |
| V4 MINUS GND 0.7 |
| V5 S net2 0 |
| **** begin user architecture code |
| |
| .lib /ef/tech/SW.2/sky130A/libs.tech/ngspice/sky130.lib.spice tt |
| * Mismatch parameters |
| * Resistor/ef/tech/SW.2/sky130A/libs.tech/ngspice/Capacitor |
| * Special cells |
| * All models |
| * Corner |
| |
| **** end user architecture code |
| **.ends |
| .GLOBAL GND |
| .GLOBAL VDD |
| **** begin user architecture code |
| |
| .options savecurrents |
| .control |
| save @m.xm5.msky130_fd_pr__nfet_01v8[gm] |
| save all |
| op |
| write n_diffamp.raw |
| .endc |
| |
| |
| **** end user architecture code |
| ** flattened .save nodes |
| .end |
