How to measure output load of buffer by Hspice of cadence

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xanhphysics

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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,
 

s-param can provide imformation about output port impedance.
 
Re: How to measure output load of buffer by Hspice of cadenc

can you tell me more detail
 

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

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