xschem/simulations/tb_cap_cp.spice

**.subckt tb_cap_cp
VSS vss GND {vss} 
VDD vdd vss {vdd} 
XM1 vss vdd vss vss sky130_fd_pr__nfet_01v8 L=0.3 W=3 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=3 m=3 
XM2 vss vdd vss vss sky130_fd_pr__pfet_01v8 L=0.3 W=3 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=3 m=3 
**** begin user architecture code



* Parameters
.param kp = 1.0
.param vdd = kp*1.8
.param vss = 0.0
.param vin = vdd
.param fref = 100e6
.param Tref = 1/fref
.param Cn = 0.0001fF
.param Cp = 0.0001fF
.param iref=100u

.options TEMP = 100.0

* Models
.lib ~/skywater/skywater-pdk/libraries/sky130_fd_pr_ngspice/latest/models/corners/sky130.lib SS
*.include ~/sky130-mpw2-fulgor/PFD/sch/simulations/PFD_pex_c.spice
.include ~/sky130-mpw2-fulgor/pfd_cp_interface/sch/simulations/pfd_cp_interface_pex_c.spice

* Data to save
.save all @M.XM1.msky130_fd_pr__nfet_01v8[cgs] @M.XM2.msky130_fd_pr__pfet_01v8[cgs] @M.XM1.msky130_fd_pr__nfet_01v8[cgd] @M.XM2.msky130_fd_pr__pfet_01v8[cgd] @M.XM1.msky130_fd_pr__nfet_01v8[cgb] @M.XM2.msky130_fd_pr__pfet_01v8[cgb] @M.XM1.msky130_fd_pr__nfet_01v8[cgg] @M.XM2.msky130_fd_pr__pfet_01v8[cgg]


* Simulation
.control
	op
	echo .
	echo ---- Cgs ----
	print @M.XM1.msky130_fd_pr__nfet_01v8[cgs]
	print @M.XM2.msky130_fd_pr__pfet_01v8[cgs]
	echo .
	echo ---- Cgd ----
	print @M.XM1.msky130_fd_pr__nfet_01v8[cgd]
	print @M.XM2.msky130_fd_pr__pfet_01v8[cgd]
	echo .
	echo ---- Cgs ----
	print @M.XM1.msky130_fd_pr__nfet_01v8[cgb]
	print @M.XM2.msky130_fd_pr__pfet_01v8[cgb]
	echo .
	echo ---- Cgs ----
	print @M.XM1.msky130_fd_pr__nfet_01v8[cgg]
	print @M.XM2.msky130_fd_pr__pfet_01v8[cgg]


.endc



**** end user architecture code
**.ends
.GLOBAL GND
** flattened .save nodes
.end