about SC OTA input common range?

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qslazio

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I'm designing a sigma-delta modulator with switch capacitor network.
I'm wondering how large the CMRR can I set for the OTA I'm going to design.
Anyone can give me some advice?
Thanks
 

Why bother to set the CMRR specs when you haven't figured out it's impact in the modulator?

Might as well just design the OTA first, then determine the CMRR.
 

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