NDLI: Calibration of DAC Mismatch Errors in <formula formulatype=inline><tex Notation=TeX>$SigmaDelta$ </tex></formula> ADCs Based on a Sine-Wave Measurement

Content Provider	IEEE Xplore Digital Library
Author	De Bock, M. Xinpeng Xing Weyten, L. Gielen, G. Rombouts, P.
Copyright Year	2004
Abstract	We present an offline calibration procedure to correct the nonlinearity due element mismatch in the digital-to-analog converter (DAC) of a multibit ΣΔ-modulation A/D converter. The calibration uses a single measurement on a sinusoidal input signal, from which the DAC errors can be estimated. The main quality of the calibration method is that it can be implemented completely in the digital domain (or in software) and does not intervene in any way in the analog modulator circuit. This way, the technique is a powerful tool for verifying and debugging designs. Due to the simplicity of the method, it may be also a viable approach for factory calibration.
Sponsorship	IEEE Circuits and Systems Society
Starting Page	567
Ending Page	571
Page Count	5
File Size	602329
File Format	PDF
ISSN	15497747
Volume Number	60
Issue Number	9
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Calibration Modulation Estimation Signal to noise ratio Table lookup Prototypes Sigma Delta modulation A/D-conversion calibration
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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Calibration of DAC Mismatch Errors in $SigmaDelta$ ADCs Based on a Sine-Wave Measurement