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Calibration of integrated circuit time constants

  • US 6,842,710 B1
  • Filed: 08/22/2002
  • Issued: 01/11/2005
  • Est. Priority Date: 08/22/2002
  • Status: Active Grant
First Claim
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1. A method of calibrating an integrated circuit time constant comprising:

  • charging a voltage storage element on said integrated circuit;

    measuring a charge time required for a voltage of said voltage storage element to match a reference voltage;

    adjusting an impedance on said integrated circuit to make said charge time approximately equal to a desired time constant value, wherein said adjusting comprises successive approximation; and

    based on an adjustment configuration determined by said adjusting, configuring a second circuit on said integrated circuit to have substantially said desired time constant value.

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