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Design >> Analog Design >> why negative capacitor
https://designers-guide.org/forum/YaBB.pl?num=1160877914

Message started by sirenehe on Oct 14^th, 2006, 7:05pm

Title: why negative capacitor
Post by sirenehe on Oct 14^th, 2006, 7:05pm

When i design op amp in cadence, after running simulation, I check the parasitic capacitors. I found Cgd, Cgb...they are negative.
why? it is not physically true, isn't it?
Thank you

Title: Re: why negative capacitor
Post by ACWWong on Oct 16^th, 2006, 2:31am

i think this post answers your question.

http://www.designers-guide.org/Forum/YaBB.pl?num=1160834621