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Monolithic optical read-out circuit

  • US 20070298845A1
  • Filed: 08/16/2007
  • Published: 12/27/2007
  • Est. Priority Date: 02/06/2003
  • Status: Active Grant
First Claim
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1. A circuit, capable of detecting and sensing photons and generating an appropriate output signal having an optical input facility and an output terminal as well as terminals for supply voltages and ground connections, comprising:

  • a photo diode connected to both the gate input of a field effect transistor and to one contact of a switching device;

    said switching device also connected to said supply voltage;

    said field effect transistor connected with its drain input to said supply voltage and connected with its source input to both a current source and a control circuit;

    said current source also connected to ground; and

    said control circuit generating said appropriate output signal of the circuit.

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