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how to decide the value of capacitor in SHA pipeline ADC?

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kazu_kazu

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how to decide a capacitor value in a circuit

Dear everyone..

I'm undergraduated students..
my final research project is Pipeline ADC..

I finished op amp and comparator..
now I want to start design a switch capacitor circuit..
but I have no idea how to decide the value (capacitance) of capacitor in SHA circuit..

I read it, that the capacitor value will be compared..
so is there any consideration to choose the value..?
or I can choose it freely as long as I can keep the ratio?


thank u very much...

intan
 

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