xschem/Tb_OTA.spice

** sch_path: /home/wisla/sky130_skel/Myschematics/Receptor/my_chip/xschem/Tb_OTA.sch
**.subckt Tb_OTA out
*.opin out
V1 net2 GND dc 0 ac 1
Ib net1 GND 1.5u
X1 VDD VSS net1 out GND net2 OTA
Vn GND VSS 1.8
Vp VDD GND 1.8
**** begin user architecture code

.lib /edatools/pdks/skywater-pdk/libraries/sky130_fd_pr_ngspice/latest/models/sky130.lib.spice tt



.control
run
 ac DEC 10 1 10E9
 set color0 = white
 set color1 = black
 set color2 = red
 set color3 = blue
 set xbrushwidth = 3

 settype decibel out
 plot db(out) ylabel 'Gain(dB)'

 settype phase vout
 let voutd = 180/PI*cph(out)
 settype phase voutd
 plot voutd ylabel 'phase'
.endc


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

* expanding   symbol:  OTA.sym # of pins=6
** sym_path: /home/wisla/sky130_skel/Myschematics/Receptor/my_chip/xschem/OTA.sym
** sch_path: /home/wisla/sky130_skel/Myschematics/Receptor/my_chip/xschem/OTA.sch
.subckt OTA  Vp Vn ib vout inp inn
*.ipin inp
*.ipin inn
*.opin vout
*.iopin Vp
*.iopin Vn
*.ipin ib
XM7 net1 net1 Vp Vp sky130_fd_pr__pfet_01v8 L=1 W=1.4 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
XM8 vout net1 Vp Vp sky130_fd_pr__pfet_01v8 L=1 W=1.4 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
XM9 ib ib Vp Vp sky130_fd_pr__pfet_01v8 L=4 W=5 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
XM10 net4 ib Vp Vp sky130_fd_pr__pfet_01v8 L=4 W=5 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
XM1 net2 inp net4 Vp sky130_fd_pr__pfet_01v8 L=2 W=1.7 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
XM2 net3 inn net4 Vp sky130_fd_pr__pfet_01v8 L=2 W=1.7 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
XM3 net2 net2 Vn Vn sky130_fd_pr__nfet_01v8 L=4 W=0.8 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 net3 net3 Vn Vn sky130_fd_pr__nfet_01v8 L=4 W=0.8 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
XM6 vout net3 Vn Vn sky130_fd_pr__nfet_01v8 L=4 W=0.8 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 net1 net2 Vn Vn sky130_fd_pr__nfet_01v8 L=4 W=0.8 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
.ends

.GLOBAL VDD
.GLOBAL GND
.GLOBAL VSS
.end