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Analog signal conditioning and digitizing integrated circuit

  • US 4,654,815 A
  • Filed: 02/07/1985
  • Issued: 03/31/1987
  • Est. Priority Date: 02/07/1985
  • Status: Expired due to Term
First Claim
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1. An analog signal conditioning and digitizing circuit means comprising an integrated circuit having a channel including a multiplying digital to analog converter, for providing gain adjustment and offset correction to an input voltage and an analog to digital converter operatively connected to the multiplying digital to analog converter for sampling, holding and digitizing the input voltage, said multiplying digital to analog converter comprising a summing and inverting negative feedback amplifier means for gain adjustment and offset noise correction and a correlated double sample circuit means connected to the amplifier means for subtracting or nulling sampled noise of the amplifier.

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