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Scalable delta-sigma modulator readout architecture for array-based sensor system

Publication ,  Journal Article
Kim, DD; Brooke, MA
Published in: Proceedings - IEEE International Symposium on Circuits and Systems
December 1, 2006

A scalable and modular delta-sigma modulator readout architecture and an implementation for an array-based sensor system are presented. The proposed readout system has parallel finite impulse response (FIR) filters that are one-to-one mapped to a large-scale array of delta-sigma modulators. The proposed filter uses bit-serial arithmetic, and it provides simultaneous and continuous filtering and readout capability to double the effective sample rate with a single concurrent conversion and readout phase. The oversampling rate and the filter coefficients can be adjusted flexibly to the design needs, and the filter array size can be increased modularly with a minimal additional circuits. A prototype filter module with a 255-tap FIR filter shows maximum 95MSamples/sec in 0.18μm CMOS technology, and an array of 256 filter modules produces 377kFrames/sec. A filter module is about 145μm wide and 145mu;m wide and 7.45μm high. © 2006 IEEE.

Duke Scholars

Published In

Proceedings - IEEE International Symposium on Circuits and Systems

ISSN

0271-4310

Publication Date

December 1, 2006

Start / End Page

1925 / 1928
 

Citation

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Kim, D. D., & Brooke, M. A. (2006). Scalable delta-sigma modulator readout architecture for array-based sensor system. Proceedings - IEEE International Symposium on Circuits and Systems, 1925–1928.
Kim, D. D., and M. A. Brooke. “Scalable delta-sigma modulator readout architecture for array-based sensor system.” Proceedings - IEEE International Symposium on Circuits and Systems, December 1, 2006, 1925–28.
Kim DD, Brooke MA. Scalable delta-sigma modulator readout architecture for array-based sensor system. Proceedings - IEEE International Symposium on Circuits and Systems. 2006 Dec 1;1925–8.
Kim, D. D., and M. A. Brooke. “Scalable delta-sigma modulator readout architecture for array-based sensor system.” Proceedings - IEEE International Symposium on Circuits and Systems, Dec. 2006, pp. 1925–28.
Kim DD, Brooke MA. Scalable delta-sigma modulator readout architecture for array-based sensor system. Proceedings - IEEE International Symposium on Circuits and Systems. 2006 Dec 1;1925–1928.

Published In

Proceedings - IEEE International Symposium on Circuits and Systems

ISSN

0271-4310

Publication Date

December 1, 2006

Start / End Page

1925 / 1928