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Offset cancellation circuit and method of reducing pulse pairing

  • US 5,182,476 A
  • Filed: 07/29/1991
  • Issued: 01/26/1993
  • Est. Priority Date: 07/29/1991
  • Status: Expired due to Fees
First Claim
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1. An offset cancellation circuit, comprising:

  • a differentiator circuit having an input coupled for receiving an input signal with a DC offset and having an output for providing a differentiated signal with a DC offset;

    a summing junction having first and second inputs and an output, said first input receiving said differentiated signal with said DC offset, said output providing an offset corrected signal; and

    a first amplifier circuit having an input coupled to said output of said summing junction and having an output coupled to said second input of said summing junction for providing an offset correction signal to remove said DC offset from said differentiated signal.

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