Photodiode isolation

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whirl7wind77

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What are the techniques to isolate a photodiode of capacitance 0.6pF from Regulated Cascode Amplifier ( R G C ) ?
 

A photodiode has less capacitance when it is reverse-biased. Then light on it causes its leakage current to increase. It will have a small amount of "dark current" that is spec'd on its datasheet.

A photodiode without reverse bias operates like a tiny solar cell and generates a voltage and current.
 

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