Differential output circuit

  • US 6,028,467 A
  • Filed: 11/06/1997
  • Issued: 02/22/2000
  • Est. Priority Date: 11/12/1996
  • Status: Expired due to Term
First Claim
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1. A differential output circuit comprising:

  • a first output line;

    a second output line;

    an output impedance connected between said first and second lines, wherein said output impedance comprises an active device including a control input for receiving a control signal value for controlling the impedance value of said active device;

    a bias circuit responsive to a voltage across a reference impedance element for generating said control signal value for controlling the impedance value of said active device; and

    an output driver stage connected to said first and second output lines for supplying first and second differential driven output signals to said first and second output lines, respectively;

    wherein said output driver stage is connected to receive reference signal levels from said bias circuit.

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