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Digital-to-analogue converter using an array of current sources

  • US 20030085824A1
  • Filed: 12/23/2002
  • Published: 05/08/2003
  • Est. Priority Date: 05/09/2001
  • Status: Active Grant
First Claim
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1. A digital-to-analogue converter, comprising:

  • an array of current sources, each current source having an output which is switchable onto one of first and second terminals as a function of a digital input, such that a first number of current source outputs are switched to the output terminal and a second number of current source outputs are switched to the output terminal, wherein the current source outputs are also switchable to a calibration unit, the current sources of the array being calibrated cyclically and wherein the current source outputs switched to the first and second output terminals are selected as a function of the point within the calibration cycle.

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