D/a converter

D/a converter

  • CN 1,204,895 B
  • Filed: 03/28/1998
  • Issued: 10/20/2010
  • Est. Priority Date: 03/28/1997
  • Status: Active Grant
First Claim
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1. D/A converter comprises:

  • 2 NThe individual constant-current source that respectively has the constant current value that is equal to each other, wherein N=2,3, Choice device is used for selecting 2 according to the input data Di with N position input signal word length NDi in an individual constant-current source constant-current source, thus use described 2 one by one according to the reference address corresponding with a selected Di constant-current source NIndividual constant-current source, wherein Di=0,1,2,3 ..., (2 N-1);

    With The current summation device is used for each constant current value addition each other of Di constant-current source will being selected by described choice device.

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