Previous work has shown that phase-plane and state-space errorntables can be used to improve the linearity of analogue-to-digitalnconverters. The calibration signals used to generate the error tablenwere incremented amplitude sinusoids, leaving unfilled regions in thentable that correspond to the high input signal frequencies and amplitudenlevels, and usually highest error. The paper proposes the use of morenelaborate calibration signals for generating the error tables. It isnshown that the use of pseudorandom calibration signals leads to superiornerror-table coverage and improved compensation over the frequency rangenof interest. The error-table compensation method is briefly comparednwith an alternative technique based on the Volterra inverse
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