ngspice/examples/adms/bsim6/inv_dc.sp

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*Sample netlist for BSIM6.0
*Inverter DC Analysis
* (exec-spice "ngspice %s" t)
.option abstol=1e-6 reltol=1e-6 post ingold
.include "modelcard.nmos"
.include "modelcard.pmos"
* --- Voltage Sources ---
vdd supply 0 dc=1.0
vin vi 0 dc=0.5
* --- Inverter Subcircuit ---
.subckt inverter vin vout vdd gnd
mXp1 vout vin vdd gnd mp W=10u L=10u
mXn1 vout vin gnd gnd mn W=10u L=10u
.ends
* --- Inverter ---
Xinv1 vi vo supply 0 inverter
* --- Transient Analysis ---
.dc vin 0 1 0.01
.print dc v(vi) v(vo)
.control
run
plot v(vi) v(vo)
.endc
.end