A novel noise-shaping DAC for multi-bit sigma-delta modulator

Please use this identifier to cite or link to this item: https://doi.org/10.1109/TCSII.2006.869920

Title:	A novel noise-shaping DAC for multi-bit sigma-delta modulator
Authors:	Chen, J. Xu, Y.P.
Keywords:	Digital-analog conversion (DAV) Mixed analog-digital integrated circuits Noise Sigma-delta (ΣΔ) modulation
Issue Date:	May-2006
Citation:	Chen, J., Xu, Y.P. (2006-05). A novel noise-shaping DAC for multi-bit sigma-delta modulator. IEEE Transactions on Circuits and Systems II: Express Briefs 53 (5) : 344-348. ScholarBank@NUS Repository. https://doi.org/10.1109/TCSII.2006.869920
Abstract:	This paper describes a new noise-shaping technique for reducing the noise of the internal digital-analog conversion (DAC) in multi-bit low-pass sigma-delta modulators. The proposed technique works with most existing dynamic element matching (DEM) algorithms to provide noise shaping to the DAC noise. The simulation shows that a 10-dB improvement in the signal-to-noise conversion ratio can be obtained with the proposed noise-shaping with DEM (NSDEM) technique. A dithered DAC employing NSDEM is realized in a 0.35-μm CMOS process and the test result shows the first-order high-pass noise shaping to the DAC noise, and validates the proposed concept. © 2006 IEEE.
Source Title:	IEEE Transactions on Circuits and Systems II: Express Briefs
URI:	http://scholarbank.nus.edu.sg/handle/10635/54637
ISSN:	10577130
DOI:	10.1109/TCSII.2006.869920
Appears in Collections:	Staff Publications

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