xschem/test_analog.spice

**.subckt test_analog
x1 OUT OUT IN BIAS n_diffamp
x2 OUT2 OUT2 IN2 BIAS2 n_diffamp
V1 IN GND 1.2
V2 BIAS GND 1.1
V3 VDD GND 1.8
V4 IN2 GND 1.0
V5 BIAS2 GND 1.0
XR1 GND OUT2 GND sky130_fd_pr__res_xhigh_po_0p35 L=50 mult=1 m=1
XR2 GND OUT GND sky130_fd_pr__res_xhigh_po_0p35 L=50 mult=1 m=1
**** begin user architecture code
 ** manual skywater pdks install (with patches applied)
* .lib /ef/tech/SW.2/sky130A/libs.tech/ngspice/models/sky130.lib.spice tt

** opencircuitdesign pdks install
.lib /ef/tech/SW.2/sky130A/libs.tech/ngspice/sky130.lib.spice tt

.param mc_mm_switch=0
.param mc_pr_switch=0

**** end user architecture code
**.ends

* expanding   symbol:  sky130_tests/n_diffamp.sym # of pins=4
* sym_path: /ef/tech/SW.2/sky130A/libs.tech/xschem/sky130_tests/n_diffamp.sym
* sch_path: /ef/tech/SW.2/sky130A/libs.tech/xschem/sky130_tests/n_diffamp.sch
.subckt n_diffamp  OUT MINUS PLUS 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
V5 S net2 0
.ends

.GLOBAL GND
.GLOBAL VDD
**** begin user architecture code



.options savecurrents
.control
save all
save @m.x1.xm5.msky130_fd_pr__nfet_01v8[gm]
save @m.x2.xm5.msky130_fd_pr__nfet_01v8[gm]
op
write test_analog.raw
.endc


**** end user architecture code
** flattened .save nodes
.end