×

Folding analog to digital converter capable of calibration and method thereof

  • US 6,888,482 B1
  • Filed: 01/19/2004
  • Issued: 05/03/2005
  • Est. Priority Date: 01/19/2004
  • Status: Active Grant
First Claim
Patent Images

1. An analog to digital converter (ADC) comprising:

  • at least one folder receiving an input voltage, generating a first output voltage and a second output voltage, and including;

    a plurality of amplifiers, wherein each of the amplifier receives one of a plurality of reference voltages and comprises;

    a bias circuit for providing a bias current to the amplifier based on at least one of a plurality of bias control signals; and

    calibration logic for generating the bias control signals according to the first output voltage and the second output voltage;

    wherein during calibration, the calibration logic provides the bias control signals to control the bias circuit of each amplifier in the folder such that the first output voltage is substantially the same as the second output voltage.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×