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Impedance matched variable gain low noise amplifier using shunt feed-back

  • US 7,724,085 B2
  • Filed: 11/20/2007
  • Issued: 05/25/2010
  • Est. Priority Date: 12/13/2004
  • Status: Active Grant
First Claim
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1. An amplifier, comprising:

  • a forward amplifier having an input and an output;

    a feedback path coupled across said input and output, including,a feedback amplifier coupled to an impedance; and

    wherein a signal output of said feedback amplifier is selectively shunted to ground for low gain applications using a switch.

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