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Questions on Sub-1 Volt OTA

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Cerebus:

--- Quote from: promach on June 20, 2021, 12:07:39 pm ---What do you mean by "Your PMOS symbols are upside down" ?

--- End quote ---

Exactly that. You've connected them with the sources at the bottom and the drains at the top connected to the positive rail. Convention when drawing "L" shaped gates is for the gate to come out on the source side of the channel.

promach:
Do not worry about the mosfet direction or the symbol itself.

I have used these PMOS and NMOS in previous projects without any issues.

By the way, the following transient analysis results seems a bit strange.

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