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Efficient two-stage digital-to-analog converter using sample-and-hold circuits

  • US 6,191,720 B1
  • Filed: 12/30/1998
  • Issued: 02/20/2001
  • Est. Priority Date: 12/30/1998
  • Status: Expired due to Term
First Claim
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1. A method for converting a digital word into an analog quantity, the method comprising:

  • (a) generating a first plurality of signals from a resistor network;

    (b) selecting a first signal from the first plurality of signals based on a first half of the digital word;

    (c) generating a second plurality of signals from the single resistor network using the selected first signal; and

    (d) selecting a second signal from the second plurality of signals based on a second half of the digital word, the second signal corresponding to the analog quantity.

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