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Design >> Analog Design >> Supply change in post layout simulation
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Message started by niloun on Feb 11^th, 2022, 10:39pm

Title: Supply change in post layout simulation
Post by niloun on Feb 11^th, 2022, 10:39pm

Hi everyone,

In the very last stage of a phase generator that I have designed for a TI ADC, I see the following phenomenon. As you can see, supply (Second signal) changes with the input (First signal) in post layout simulation. Phase generator is connected to the SAR ADCs.
Could you please help me understand what is happening?

Thanks

Title: Re: Supply change in post layout simulation
Post by niloun on Mar 3^rd, 2022, 10:53am

Solved. The extracted file was corrupted! Using dspf extraction solved it. Supply nodes were floating!

Thanks,
Nilou