Positive-peak-detector

  
This peak detector uses a CA3100 BiMOS op amp as a wide-band noninverting amplifier to provide essentially constant gain for a wide range of input frequencies. The IN914 clips the negative half of VfN (R4)/(R3) (R5).
Positive-peak-detector - schematic

A 500-I"A load current is constant for all load values and the output reflects only positive input peaks.




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