xschem/ring_vco/FD.spice

**.subckt FD
V1 vss GND DC{Vss} 
V2 vdd vss DC{Vdd} 
V3 in vss PULSE(0 {Vin} 1ps 1ps 1ps 5ns 10ns) 
x1 in vss out vdd FD_v2
C1 out vss 10f m=1
**** begin user architecture code




* Circuit Parameters
.param vdd  = 1.8
.param vss  = 0.0
.param vin  = 1.8
.param iref = 200u
.options TEMP = 27.0

* Include Models
.lib ~/skywater_pdk/skywater-pdk/libraries/sky130_fd_pr/latest/models/corners/sky130.lib TT

* OP Parameters & Singals to save
.save all  @M.X1.XM1.msky130_fd_pr__nfet_01v8[id] @M.X1.XM1.msky130_fd_pr__nfet_01v8[vth]
+ @M.X1.XM1.msky130_fd_pr__nfet_01v8[vgs] @M.X1.XM1.msky130_fd_pr__nfet_01v8[vds] @M.X1.XM1.msky130_fd_pr__nfet_01v8[vdsat]
+ @M.X1.XM1.msky130_fd_pr__nfet_01v8[gm] @M.X1.XM1.msky130_fd_pr__nfet_01v8[gds]  @M.X1.XM2.msky130_fd_pr__pfet_01v8[id]
+ @M.X1.XM2.msky130_fd_pr__pfet_01v8[vth] @M.X1.XM2.msky130_fd_pr__pfet_01v8[vgs] @M.X1.XM2.msky130_fd_pr__pfet_01v8[vds]
+ @M.X1.XM2.msky130_fd_pr__pfet_01v8[vdsat] @M.X1.XM2.msky130_fd_pr__pfet_01v8[gm] @M.X1.XM2.msky130_fd_pr__pfet_01v8[gds]

*Simulations
.control
  tran 0.1ns 200ns
  setplot tran1
  plot v(in) v(out)
  *write ~/caravel_fulgor_opamp/xschem/sim_results/opamp_closeloop_tran1.raw


.endc

.end


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

* expanding   symbol:  /home/dhernando/caravel_fulgor_opamp/xschem/ring_vco/FD_v2.sym # of pins=4

.subckt FD_v2  clk vss out vdd
*.opin out
*.ipin vdd
*.ipin clk
*.ipin vss
XM1 1 4 vss vss sky130_fd_pr__nfet_01v8 W=0.45 L=0.15 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 
XM2 1 4 vdd vdd sky130_fd_pr__pfet_01v8 W=0.9 L=0.15 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 
XM3 1 clk 2 vdd sky130_fd_pr__pfet_01v8 W=0.45 L=0.15 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 
XM4 1 clk_b 2 vss sky130_fd_pr__nfet_01v8 W=0.9 L=0.15 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 
XM5 3 2 vss vss sky130_fd_pr__nfet_01v8 W=0.45 L=0.15 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 
XM6 3 2 vdd vdd sky130_fd_pr__pfet_01v8 W=0.9 L=0.15 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 
XM7 3 clk out vdd sky130_fd_pr__pfet_01v8 W=0.45 L=0.15 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 
XM8 3 clk_b out vss sky130_fd_pr__nfet_01v8 W=0.9 L=0.15 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 
XM9 4 out vss vss sky130_fd_pr__nfet_01v8 W=0.45 L=0.15 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 
XM10 4 out vdd vdd sky130_fd_pr__pfet_01v8 W=0.9 L=0.15 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 
XM11 clk_b clk vss vss sky130_fd_pr__nfet_01v8 W=0.45 L=0.15 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 
XM12 clk_b clk vdd vdd sky130_fd_pr__pfet_01v8 W=0.9 L=0.15 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 
.ends

.GLOBAL GND
.end