一、常规网表
Inverter .lib "D:libl0040ll_v1p4_1r.lib" TT .param SUPPLY=1.1V .param T=10ns .param dt=0.02ns .temp 25 .global VDD VSS .option MEASDGT=3 post *MEASDGT=3表示输出结果保留3位有效数字 VVDD VDD 0 'SUPPLY' *********** 反相器 **************** .subckt Inverter *Inputs + in *Supply + VDD GND *Outputs + out XP1 out in VDD VDD p11ll_ckt W=200n L=40n XN1 out in GND GND n11ll_ckt W=120n L=40n .ends ******************************************** X_Inverter *Inputs + in *Supply + VDD GND *Outputs + out + Inverter C_load out 0 1.5f *Vin in 0 PWL(0n 0V,"T-dt" 0V , T SUPPLY , "2*T-dt" SUPPLY, "2*T" 0V , "3*T-dt" 0V) *0-1-0 Vin in 0 PULSE(0 SUPPLY "T*0.5" 0n 0n "T*0.5" T) ＿|￣|＿ *测量语句 .Measure tran V_in find V(in) when V(out)="0.1*SUPPLY" rise=1 .Measure tran pwr AVG P(VVDD) From=0ns To="3*T-dt" .Measure tran Tr trig V(out) val='0.1*SUPPLY' rise=1 + targ V(out) val='0.9*SUPPLY' rise=1 *瞬态扫描语句 .tran 0.001n "6*T" *+ sweep monte=1 + sweep SUPPLY 0.6V 1.1V 0.1V *.print tran V(in) V(out) .probe v(*) .end
二、直流分析网表
HSPICE demo .LIB ".cmos25_level49.lib" TT .temp 25 .plot DC I(M0) VVSS VSS 0 0 VVDS D VSS 0 VVGS G VSS 0.5 .dc VVDS 0 5 0.1 sweep VVGS 0.5 2.5 0.5 M0 D G VSS VSS nmos L=0.5u W=4.8u .end
打开生成的.sw0文件可以看到如下的波形：
Ids:
Vd:
Vg:
