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NESTED TRANSIMPEDANCE AMPLIFIER

  • US 20100073083A1
  • Filed: 11/30/2009
  • Published: 03/25/2010
  • Est. Priority Date: 03/13/2001
  • Status: Active Grant
First Claim
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1. A nested transimpedance amplifier circuit, comprising:

  • a first-order nested transimpedance amplifier having an input and an output, the first-order nested transimpedance amplifier configured to be powered by a first voltage;

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

    a first operational amplifier having an input and an output,wherein the input of the first operational amplifier communicates with the output of the zero-order transimpedance amplifier, and the first operational amplifier is configured to be powered by the third voltage.

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