Ultra-responsive peak detector
Design Tip
Published in issue 376, April 2008
The peak detector presented here will respond to amplitude changes of the input signal within one-half of a cycle. Because no ‘bleed’ resistor is required on the output capacitor, droop is only limited by the ‘off’ resistance of a CMOS switch. Note that circuit is more accurately described as an amplitude detector, as the output level is equal to the average of the absolute values of the positive and negative amplitudes.
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Click below to download a PDF copy of this article from Elektor magazine. Please note. In view of the complexity of international markets, Elektor cannot guarantee the availability of components for this project.
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