Switched capacitor circuit with reduced common-mode variations

  • US 20050134380A1
  • Filed: 12/23/2003
  • Published: 06/23/2005
  • Est. Priority Date: 12/23/2003
  • Status: Active Grant
First Claim
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1. A circuit with a common-mode dual output, comprising:

  • a common-mode circuit with an output portion;

    a common-mode corrector circuit connected to alternate the states of said output portion between an average output level and a desired common-mode level, the difference between the average and desired levels being proportional to a signal offset level; and

    an error correcting circuit connected to said common-mode corrector circuit to adjust the signal offset level.

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