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peak detector ripple voltage

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tyanata

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voltage peak detector

Hi,

Can any one say how to determine value of HOLD capacitance C1 in simple peak detector (I have requirement for 1% ripple voltage)
 

peak detector 2008

Find out the leakage currents. The reset switch, diode, and the amp are the sources of leakage. Run the sim at Fast, hot corner. If the sum of these currents is It, the cap must be greater than It*T/dV. where T is the input time period (or the estimated period of the peak), dV is the allowed voltage error (due to sag alone)
 

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    tyanata

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