output impedance simulation help

[youtube23]

Hi,

I'm trying to use spectre to get output impedance of following circuit


I can do AC sweep and use Vout/Iout to see the output impedance VS frequency. But in this way i can not see the influence of input square wave switching. If i want to see the influence of this square wave, should i use PSS or PSP simulation?

Thanks!

 

[Audioguru]

Your inverter has no part number and no power supply voltage.
Does your simulation software know these important things?

 

[youtube23]

Hi Audioguru,

I have the power supply and the inverter is just the symbol i created. they are just not showing in this picture.

Your inverter has no part number and no power supply voltage.
Does your simulation software know these important things?