×

SAR analog to digital converter having multiplexable ground sense pin

  • US 7,411,538 B1
  • Filed: 03/31/2007
  • Issued: 08/12/2008
  • Est. Priority Date: 03/31/2007
  • Status: Expired due to Fees
First Claim
Patent Images

1. A circuit, comprising:

  • a successive approximation register A/D converter having a ground pin and a ground sense pin, wherein the ground pin is connected to a ground port of the circuit;

    a multiplexer for connecting the ground sense pin of the successive approximation register A/D converter to one of a plurality of I/O ports of the circuit; and

    a switch for selectively connecting the ground sense pin of the successive approximation register A/D converter to the ground port of the circuit.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×