如何去仿真一个反相器去得到它的等效电阻电容

chibijia

如何去仿真一个反相器去得到它的等效电阻电容。
现在由于论文需要，且只需要得到反相器的等效电阻电容的模型参数。不需要提供小信号模型那样精确的模型。我能不能这样仿真。
对于45nm反相器其网表为
% \) t6 S; f; ?6 M3 TInverter Circuit
.OPTIONS LIST NODE POST
9 d3 N6 ?% A% B3 F+ cvdd vdd 0 0.6v
3 }! q, M8 p3 F9 |6 f; z* K% WM1 OUT IN Vdd Vdd PCH L=65n W=130n
M2 OUT IN 0 0 NCH L=65n W=65n
! [7 k! j4 v" i0 VVIN IN 0 0 PULSE 0 0.6 0.01N 0.01N 0.01N 0.0334N 0.1n
*VIN IN 0 PWL(0,0,0.01n,0.6v,0.0434,0.6v,0.0534n,0,0.0.0868n,0)
" ~3 G# S  P; l4 F; C2 h2 o* N5 BCLOAD OUT 0 cpar
.param cpar=0.05f
.MODEL PCH PMOS LEVEL=1
+ ~$ A+ _+ t5 |, X& ~' \.MODEL NCH NMOS LEVEL=1
.TRAN 0.01n 0.1N sweep cpar 0.01f 0.1f 0.03f
.PRINT TRAN V(IN) V(OUT)
.END
请问能否根据这样得到的输入输出信号波形来得到等效电阻电容。