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Design theory for high-order incremental converters

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3 Author(s)
Markus, J. ; Dept. of Meas. & Inf. Syst., Budapest Univ. of Technol. & Econ., Hungary ; Silva, J. ; Temes, G.C.

A/D converters used in instrumentation and measurements often require high absolute accuracy, including high linearity and negligible DC offset. The incremental (or integrating) converter provides a solution for such measurement applications, as it has all the advantages of the ΔΣ (Delta-Sigma) converter, yet is capable of offset-free and accurate conversion. In this conference paper, theoretical and practical aspects of higher-order incremental converters are discussed. Operating principles, topologies and specialized digital filter design methods are addressed. The theoretical results are verified by showing design examples and simulation results.

Published in:

Intelligent Signal Processing, 2003 IEEE International Symposium on

Date of Conference:

4-6 Sept. 2003