Kavita R Nair, 53Edina, MN

6784814, Aug 31, 2004

Mar 7, 2003

10/384162

Kavita Nair - Eden Prairie MN
Ramesh Harjani - Minneapolis MN

Regents of the University of Minnesota - Minneapolis MN

H03M 106

341118, 341120

An analog to digital method and apparatus corrects non-linearity error and gain error in a multiple stage pipeline analog to digital converter over a plurality of clock cycles. Preferably, continuous correction, during each of the plurality of clock cycles, of at least portion of non-linearity error introduced by a digital to analog conversion is performed in a first stage of the multiple stage pipeline analog to digital converter with use of an averaging over time of a first stage digital residue signal provided by the remainder stages of the multiple stage pipeline analog to digital converter. Such correction is used to provide a non-linearity corrected digital signal. Correction, during each of the plurality of clock cycles, of at least a portion of a gain error introduced by one or more amplifiers in the multiple stage pipeline analog to digital converter is provided by averaging the non-linearity corrected digital signal over time.