**.subckt bandgap_opamp_verification
Vdd net2 GND {vdd} 
xdut net2 ac net4 net1 net3 GND bandgap_opamp
V2 net4 GND dc=0.7 ac=0
V3 net5 GND dc=0 ac=1
R1 net1 net5 1000Meg m=1 ac=1u
R2 ac net1 1u m=1 ac=1000Meg
XMcurr_op_ctat net3 net6 net2 net2 sky130_fd_pr__pfet_01v8_lvt W=5 L=8 ad='W * 0.29' pd='2 * (W + 0.29)'
+ as='W * 0.29' ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=4 m=4 
xbmr net2 net2 net6 GND bandgap_bmr
**** begin user architecture code


.lib /usr/local/share/sky130_fd_pr/models/sky130.lib.spice lh
.param vdd=1.8

.param temp=125.000000
.temp 125.000000

.save all
.option savecurrents


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

* expanding   symbol:  bandgap_opamp/bandgap_opamp.sym # of pins=6

.subckt bandgap_opamp  vdd out inp inn bias gnd
*.ipin inp
*.ipin inn
*.ipin bias
*.opin out
*.iopin vdd
*.iopin gnd
XMmpdiff net9 net2 vdd vdd sky130_fd_pr__pfet_01v8_lvt W=5 L=8 ad='W * 0.29' pd='2 * (W + 0.29)' as='W * 0.29'
+ ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=32 m=32 
XMmpr net2 net2 vdd vdd sky130_fd_pr__pfet_01v8_lvt W=5 L=8 ad='W * 0.29' pd='2 * (W + 0.29)' as='W * 0.29'
+ ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=8 m=8 
XMmnr bias bias gnd gnd sky130_fd_pr__nfet_01v8_lvt W=2 L=4 ad=0.58 pd=4.58 as=0.58 ps=4.58
+ nrd=0.145 nrs=0.145 sa=0 sb=0 sd=0 nf=1 mult=2 m=2
XMmnb net2 bias gnd gnd sky130_fd_pr__nfet_01v8_lvt W=2 L=4 ad=0.58 pd=4.58 as=0.58 ps=4.58
+ nrd=0.145 nrs=0.145 sa=0 sb=0 sd=0 nf=1 mult=2 m=2
XMtrioden net11 net5 gnd gnd sky130_fd_pr__nfet_01v8_lvt W=2 L=8 ad=0.58 pd=4.58 as=0.58 ps=4.58
+ nrd=0.145 nrs=0.145 sa=0 sb=0 sd=0 nf=1 mult=1 m=1
XMmpa net10 net2 vdd vdd sky130_fd_pr__pfet_01v8_lvt W=5 L=8 ad='W * 0.29' pd='2 * (W + 0.29)' as='W * 0.29'
+ ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=4 m=4 
XMcpdiff net1 net8 net9 vdd sky130_fd_pr__pfet_01v8_lvt W=5 L=0.5 ad='W * 0.29' pd='2 * (W + 0.29)' as='W * 0.29'
+ ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=32 m=32 
XMmna net8 bias gnd gnd sky130_fd_pr__nfet_01v8_lvt W=2 L=4 ad=0.58 pd=4.58 as=0.58 ps=4.58
+ nrd=0.145 nrs=0.145 sa=0 sb=0 sd=0 nf=1 mult=2 m=2
XMtriodep net12 net8 vdd vdd sky130_fd_pr__pfet_01v8_lvt W=5 L=4 ad='W * 0.29' pd='2 * (W + 0.29)' as='W * 0.29'
+ ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=2 m=2 
XMcpa net5 net8 net10 vdd sky130_fd_pr__pfet_01v8_lvt W=5 L=0.5 ad='W * 0.29' pd='2 * (W + 0.29)' as='W * 0.29'
+ ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=4 m=4 
XMcasba net5 net5 net11 gnd sky130_fd_pr__nfet_01v8_lvt W=5 L=4 ad=1.45 pd=10.58 as=1.45 ps=10.58
+ nrd=0.057999999999999996 nrs=0.057999999999999996 sa=0 sb=0 sd=0 nf=1 mult=8 m=8
.save v( net3 )
XMcasn net7 net5 net4 gnd sky130_fd_pr__nfet_01v8_lvt W=5 L=4 ad=1.45 pd=10.58 as=1.45 ps=10.58
+ nrd=0.057999999999999996 nrs=0.057999999999999996 sa=0 sb=0 sd=0 nf=1 mult=8 m=8
XMcasp net6 net5 net3 gnd sky130_fd_pr__nfet_01v8_lvt W=5 L=4 ad=1.45 pd=10.58 as=1.45 ps=10.58
+ nrd=0.057999999999999996 nrs=0.057999999999999996 sa=0 sb=0 sd=0 nf=1 mult=8 m=8
XMloadmp net13 net6 vdd vdd sky130_fd_pr__pfet_01v8_lvt W=5 L=1 ad='W * 0.29' pd='2 * (W + 0.29)' as='W * 0.29'
+ ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=1 m=1 
XMloadmn net14 net6 vdd vdd sky130_fd_pr__pfet_01v8_lvt W=5 L=1 ad='W * 0.29' pd='2 * (W + 0.29)' as='W * 0.29'
+ ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=1 m=1 
XMloadcn net7 net8 net14 vdd sky130_fd_pr__pfet_01v8_lvt W=5 L=0.5 ad='W * 0.29' pd='2 * (W + 0.29)'
+ as='W * 0.29' ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=10 m=10 
XMloadcp net6 net8 net13 vdd sky130_fd_pr__pfet_01v8_lvt W=5 L=0.5 ad='W * 0.29' pd='2 * (W + 0.29)'
+ as='W * 0.29' ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=10 m=10 
XMmfn net4 bias gnd gnd sky130_fd_pr__nfet_01v8_lvt W=2 L=4 ad=0.58 pd=4.58 as=0.58 ps=4.58
+ nrd=0.145 nrs=0.145 sa=0 sb=0 sd=0 nf=1 mult=8 m=8
XMmfp net3 bias gnd gnd sky130_fd_pr__nfet_01v8_lvt W=2 L=4 ad=0.58 pd=4.58 as=0.58 ps=4.58
+ nrd=0.145 nrs=0.145 sa=0 sb=0 sd=0 nf=1 mult=8 m=8
XMdiffn net4 inp net1 net1 sky130_fd_pr__pfet_01v8_lvt W=7 L=0.35 ad='W * 0.29' pd='2 * (W + 0.29)' as='W * 0.29'
+ ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=64 m=64 
XMdiffp net3 inn net1 net1 sky130_fd_pr__pfet_01v8_lvt W=7 L=0.35 ad='W * 0.29' pd='2 * (W + 0.29)' as='W * 0.29'
+ ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=64 m=64 
.save v( net5 )
.save v( net1 )
.save v( net8 )
.save v( net2 )
.save v( net14 )
.save v( net6 )
XMcpdiff1 net8 net8 net12 vdd sky130_fd_pr__pfet_01v8_lvt W=5 L=0.5 ad='W * 0.29' pd='2 * (W + 0.29)'
+ as='W * 0.29' ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=2 m=2 
.save v( net4 )
XMmnc out bias gnd gnd sky130_fd_pr__nfet_01v8_lvt W=2 L=4 ad=0.58 pd=4.58 as=0.58 ps=4.58 nrd=0.145
+ nrs=0.145 sa=0 sb=0 sd=0 nf=1 mult=32 m=32
XMgain out net7 vdd vdd sky130_fd_pr__pfet_01v8_lvt W=5 L=1 ad='W * 0.29' pd='2 * (W + 0.29)' as='W * 0.29'
+ ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=8 m=8 
.ends


* expanding   symbol:  bandgap_bmr/bandgap_bmr.sym # of pins=4

.subckt bandgap_bmr  vdd en biasv vss
*.iopin vdd
*.iopin vss
*.opin biasv
*.ipin en
XMdiff_n2 biasv net1 net2 vss sky130_fd_pr__nfet_01v8 W=5 L=1 ad='W * 0.29' pd='2 * (W + 0.29)' as='W * 0.29'
+ ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=16 m=16 
XR1 vss net2 vss sky130_fd_pr__res_xhigh_po W=1 L=5 m=1
XMdiff_n1 net1 net1 vss vss sky130_fd_pr__nfet_01v8 W=5 L=1 ad='W * 0.29' pd='2 * (W + 0.29)' as='W * 0.29'
+ ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=4 m=4 
XMcurr_p2 biasv biasv vdd vdd sky130_fd_pr__pfet_01v8_lvt W=5 L=8 ad='W * 0.29' pd='2 * (W + 0.29)' as='W * 0.29'
+ ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=4 m=4 
XMcurr_p1 net1 biasv vdd vdd sky130_fd_pr__pfet_01v8_lvt W=5 L=8 ad='W * 0.29' pd='2 * (W + 0.29)' as='W * 0.29'
+ ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=4 m=4 
XMsw_start biasv net3 net1 vss sky130_fd_pr__nfet_01v8 W=5 L=1 ad='W * 0.29' pd='2 * (W + 0.29)' as='W * 0.29'
+ ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=1 m=1 
XMdiff_n3 net3 net1 vss vss sky130_fd_pr__nfet_01v8 W=5 L=1 ad='W * 0.29' pd='2 * (W + 0.29)' as='W * 0.29'
+ ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=4 m=4 
XMcurr_bias net3 net3 vdd vdd sky130_fd_pr__pfet_01v8_lvt W=0.42 L=20 ad='W * 0.29' pd='2 * (W + 0.29)'
+ as='W * 0.29' ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=1 m=1 
XMsw_en2 biasv en vdd vdd sky130_fd_pr__pfet_01v8_lvt W=0.42 L=0.35 ad='W * 0.29' pd='2 * (W + 0.29)'
+ as='W * 0.29' ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=1 m=1 
XMsw_en1 net3 en vdd vdd sky130_fd_pr__pfet_01v8_lvt W=0.42 L=0.35 ad='W * 0.29' pd='2 * (W + 0.29)'
+ as='W * 0.29' ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=1 m=1 
XCcomp biasv net1 sky130_fd_pr__cap_mim_m3_1 W=10 L=10 MF=1
XMdum vss net1 vss vss sky130_fd_pr__nfet_01v8 W=5 L=1 ad='W * 0.29' pd='2 * (W + 0.29)' as='W * 0.29'
+ ps='2 * (W + 0.29)' nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 nf=1 mult=5 m=5 
XCfilt biasv vdd sky130_fd_pr__cap_mim_m3_1 W=7.7 L=7.2 MF=1
.ends

.GLOBAL GND

.ac dec 10 1 1000Meg

.end