How to measure output load of buffer by Hspice of cadence

[xanhphysics]

I'm designning output buffer for LA with require output load =50 ohm
But after i design i dont know how to simulate to examine the value of output load by Cadence .Hope anyone can help me how to solve this problem .
Best regards,

 

[renwl]

s-param can provide imformation about output port impedance.

 

[xanhphysics]

Re: How to measure output load of buffer by Hspice of cadenc

can you tell me more detail

 

[abcyin]

By SP analysis, you will get the Z parameter information, in which, the Z22 is the output impedance of your circuit.