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Oct 4th, 2023, 5:39am
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symmetrical op amp with asymmetrical dc operating point (SOLVED) (Read 239 times)
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symmetrical op amp with asymmetrical dc operating point (SOLVED)
Mar 01st, 2022, 3:18pm
Hello everyone, first thank you for reading my post.

I have a problem, I am trying to characterize a fully differential miller opamp. However, although the design is completely symmetrical, the operating point of one of the branches is different from the other and I don't understand why. In the following image you can see what I mean:

Due to this asymmetry the common mode control circuit is not working well. Any idea or suggestion is welcome.

Edit: Excuse me, I already found the error, I had the bulk of a badly connected transistor
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