Calibration of Analog to Digital and Analog to Information Converters

TITLE: Digital Calibration of Analog to Digital and Analog to Information Converters (Completed)

Advisors: Sameer R Sonkusale

Researcher: Jian Guo, Sungkil Hwang

ABSTRACT:

We have proposed both (1) analog and (2) digital calibration techniques for high resolution pipelined A/D converters.  In addition we have proposed calibration of continuous time delta sigma converter used in accelerometer/gyroscope applications. The techniques are implemented in background, and correct for finite gain error of the operational amplifiers, capacitor mismatch and nonlinear input dependent gain errors that limit the performance of the converters. Techniques utilize adaptive least mean squared approach for digital calibration.

PUBLICATIONS:

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