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Last Updated on: Saturday, December 23, 2017 03:21 PM

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More  Transimpedance Amplifiers

40KHz LIGHT RECEIVER FRONT-END CIRCUIT
 

This circuit uses a unique cascode Amplifier circuit to convert the current from a PIN photo diode to a current without any feedback network. It is very stable and very sensitive. The circuit shown has the potential for a conversion factor of 10 volts per microwatt at 900nm. I included a simple JFET post-amplifier with a gain of about 20.

Click on Drawing Below to view PDF version of Schematic

Circuit 40KHz Light Receiver Front End Circuit designed by David A. Johnson, P.E. (June 14,2000)

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