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Nested transimpendance amplifier

  • US 8,159,293 B2
  • Filed: 08/17/2010
  • Issued: 04/17/2012
  • Est. Priority Date: 03/13/2001
  • Status: Active Grant
First Claim
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1. A nested transimpedance amplifier circuit, comprising:

  • a first power source at a first voltage;

    a second power source at a second voltage, wherein the second voltage is different than the first voltage;

    a charge pump module configured toreceive the first voltage and the second voltage, andgenerate a third voltage based on the first voltage and the second voltage; and

    a first transimpedance amplifier comprising (i) an input configured to receive an input voltage, (ii) an output configured to output an output voltage and (iii) a first operational amplifier configured to receive the third voltage, wherein the first transimpedance amplifier is configured to generate the output voltage based on the third voltage and the input voltage.

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