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Fully balanced transimpedance amplifier with low noise and wide bandwidth

  • US 5,343,160 A
  • Filed: 10/21/1992
  • Issued: 08/30/1994
  • Est. Priority Date: 10/21/1992
  • Status: Expired due to Fees
First Claim
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1. A balanced transimpedance amplifier circuit comprising:

  • a first amplifier circuit for amplifying a first signal at a first input line;

    a second amplifier circuit for amplifying a second signal at a second input line;

    a first capacitor coupled between said first input line and an input node of said first amplifier circuit;

    a second capacitor coupled between said second input line and an input node of said second amplifier circuit;

    a first feedback network coupled between an output line of said first amplifier circuit and said first input line;

    a second feedback network coupled between an output line of said second amplifier circuit and said second input line;

    a first voltage offset means coupled in series with said first feedback network; and

    a second voltage offset means coupled in series with said second feedback network.

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