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Voltage signal line driver comprising a push-pull bridge amplifier

  • US 5,631,595 A
  • Filed: 02/27/1996
  • Issued: 05/20/1997
  • Est. Priority Date: 09/30/1994
  • Status: Expired due to Term
First Claim
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1. In an integrated circuit, a balanced line driver has two portions, wherein the two portions are coupled to a load therebetween, each portion having:

  • a switching transistor, coupled between a power supply rail and an output terminal; and

    an amplifier responsive to an input signal applied to an input and having an output coupled to the output terminal;

    wherein the balanced line driver is CHARACTERIZED BY;

    a sense transistor, connected between the power supply rail and the input of the amplifiers, for compensating for variations in the conductivity of the switching transistors caused by variations in transistor characteristics.

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