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Design for testability techniques in switched-capacitor circuits

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3 Author(s)
A. Rueda ; Dpto. de Diseno Analogico, Sevilla Univ., Spain ; J. L. Huertas ; D. Vazquez

A way to incorporate design for test methodology into switched-capacitor filters is presented. It falls into what is known in digital circuits as a voting-based scheme. The basic architecture uses some additional circuitry for providing extra capabilities for both off- and on-line test. The approach uses a comparison (voting) mechanism to indicate whether or not two copies of a filter element (a biquad, for instance) have a similar response during their actual operation. The design of two examples is included to assess the potential usefulness of this new approach

Published in:

Circuits and Systems, 1992., Proceedings of the 35th Midwest Symposium on

Date of Conference:

9-12 Aug 1992