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Ad conversion circuit, semiconductor device, and ad conversion method

  • US 8,816,888 B2
  • Filed: 09/26/2013
  • Issued: 08/26/2014
  • Est. Priority Date: 10/04/2012
  • Status: Active Grant
First Claim
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1. An AD conversion circuit comprising:

  • a reference voltage generator which generates a reference voltage at the time of sampling a received input signal; and

    a sampling time controller which detects a change in the reference voltage, which determines at the time of the reference voltage rising to a determined threshold that sampling is completed, and which generates a sampling clock in which sampling time is controlled on the basis of an external clock.

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