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Comparator circuit

  • US 5,635,864 A
  • Filed: 06/07/1995
  • Issued: 06/03/1997
  • Est. Priority Date: 06/07/1995
  • Status: Expired due to Term
First Claim
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1. An analog-to-digital converter apparatus, comprising a comparator having first and second units, each of said units comprising:

  • a capacitor connected to a first node and a second node;

    a first switch means for connecting said first node to a selected one of an input voltage and a reference voltage;

    an inverter having an input connected to said second node, and an output; and

    a second switch means for connecting said output of said inverter to said second node of an other of said units.

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