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[Delta-Sigma] Give me help, please.

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Cho Sungil

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Hi, I'v started the study about Delta-sigma.

I'll make first-order modulator for ADCs.

But I don't know how I choose the capacitor size and the reference voltage.

If I make a 1.8V fully differential first order modulator, usually what reference top and bottom voltage?

And could you explain the sampling and integrating capacitor sizing method?

Thank you. ^^
 

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