Electronics > Beginners
Transforming a signal shape?
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Ian.M:
If the source is low impedance and you don't care if you loose small pulses (say less than 1V peak), this (LTspice sim) should work.  The OPAMP + supply needs to be greater than the max possible peak pulse voltage.  The MCU must provide a control signal to reset the voltage on the capacitor after the ADC has measured it.
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