Abstract:A digital calibration scheme simultaneously correcting both linear and nonlinear errors of inter-stage amplifiers in pipelined ADCs is proposed. Two modes of dithering are employed for the linear gain measurement, and the difference between their results is used to indicate the nonlinear error. The additional analog complexity introduced by the proposed technique is no more than that in a classical signal dependent dithering scheme. Behavioral simulation shows that the proposed calibration scheme is able to co… Show more
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