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Analog to digital converter with improved input overload recovery

  • US 7,786,909 B2
  • Filed: 12/18/2008
  • Issued: 08/31/2010
  • Est. Priority Date: 01/21/2008
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • an analog-to-digital converter (ADC) that receives an analog input signal and that outputs a digital signal; and

    an overload sense circuit that receives the analog input signal and that is coupled to the ADC, wherein the overload sense circuit inhibits the ADC from sampling the analog input signal for sampling instants where the analog input signal is greater than a first threshold voltage, and wherein the overload sense circuit inhibits the ADC from sampling the analog input signal for sampling instants where the analog input signal is less than a second threshold voltage.

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