What is the minimum capacitor value of unit cap when doing capacitor matching?

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iexplorer

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what is the minimum capacitor value of unit cap when do capacitor matching? [/i]
 

layout of capacitor

It depends on your design. For example, you got two caps C1 and C2 for matching. It is better to chose the greatest common divisor for C1 and C2 as the unit cap.
 

Re: layout of capacitor

what about in ADC matching sampling and hold capacitor?
 

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