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Tail current node equalization for a variable offset amplifier

  • US 6,617,926 B2
  • Filed: 12/23/2002
  • Issued: 09/09/2003
  • Est. Priority Date: 06/29/2001
  • Status: Expired due to Term
First Claim
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1. An amplifier circuit comprising:

  • first and second differential pairs;

    first and second variable current generators coupled to respective tail current nodes of the first and second differential pairs, to control respective tail currents of the first and second differential pairs; and

    a switch circuit coupled to equalize the voltages of the respective tail current nodes.

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