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Device and method for generating a low-voltage reference

  • US 20070159238A1
  • Filed: 02/27/2007
  • Published: 07/12/2007
  • Est. Priority Date: 08/04/2005
  • Status: Active Grant
First Claim
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1. A voltage reference generator, comprising:

  • a bandgap voltage reference circuit configured to generate a first complementary-to-absolute-temperature (CTAT) signal varying with a first temperature coefficient and a second complementary-to-absolute-temperature (CTAT) signal varying with a different second temperature coefficient; and

    a differential sensing device configured to scale the first and second CTAT signals to exhibit approximately equal temperature coefficients and to generate a reference signal therefrom.

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