"Comparison of algorithms for computing inl from sinewave histogram" by Carsten Wegener and Michael Peter Kennedy
 

Comparison of algorithms for computing inl from sinewave histogram

Abstract

Computing the Integral Nonlinearity (INL) of an ADC from the histogram of output codes for a sine wave input is investigated. Two algorithms are compared: one based on a proposal by Doernberg et al. [1] and another based on a proposal by van Bossche et al. [2]. Doernberg's algorithm has evolved into a quasi industry standard [3] while van Bossche's algorithm has been standardized by the IEEE [4]. Simulating the test method of sinewave histogramming for a perfectly linear ADC, both computation algorithms yield comparable results; in the presence of ADC nonlinearities results, however, they differ. This questions the suitability of the two algorithms for the purposes of testing the worst-case non-linearity specifications for ADCs.

Publication Title

IET Conference Publications

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