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2014-12-18 06:41  
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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.


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





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