A FRAMEWORK FOR EXTERNAL DYNAMIC COMPENSATION OF AD CONVERTERS

Henrik Lundin, Mikael Skoglund, Peter Händel

Abstract

External correction of analog-to-digital converters is considered. First, a dynamic correction scheme is proposed to comprise bit-masking. Next, a framework for analyzing the effects of bit-reduced table indexing is derived. This framework is finally applied in an optimization problem for bit allocation in the bit mask of the introduced correction scheme.<br />Both the dynamic correction method and the optimization problem are exemplified with experimental AD data. The results indicate that the considered correction scheme is superior to static schemes, and that the choice of bit mask is crucial, motivating the analysis framework.

Keywords

dynamic correction, optimization, bit allocation

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IMEKO-TC4-2002-010.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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