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Calibration of DAC mismatch errors in sigma delta ADCs based on a sine-wave measurement

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Abstract
We present an offline calibration procedure to correct the nonlinearity due element mismatch in the digital-to-analog converter (DAC) of a multibit Sigma Delta-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.
Keywords
calibration, A/D-conversion, Sigma Delta modulation

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Citation

Please use this url to cite or link to this publication:

Chicago
De Bock, Maarten, Xinpeng Xing, Ludo Weyten, Georges Gielen, and Pieter Rombouts. 2013. “Calibration of DAC Mismatch Errors in Sigma Delta ADCs Based on a Sine-wave Measurement.” Ieee Transactions on Circuits and Systems Ii-express Briefs 60 (9): 567–571.
APA
De Bock, Maarten, Xing, X., Weyten, L., Gielen, G., & Rombouts, P. (2013). Calibration of DAC mismatch errors in sigma delta ADCs based on a sine-wave measurement. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 60(9), 567–571.
Vancouver
1.
De Bock M, Xing X, Weyten L, Gielen G, Rombouts P. Calibration of DAC mismatch errors in sigma delta ADCs based on a sine-wave measurement. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS. 2013;60(9):567–71.
MLA
De Bock, Maarten, Xinpeng Xing, Ludo Weyten, et al. “Calibration of DAC Mismatch Errors in Sigma Delta ADCs Based on a Sine-wave Measurement.” IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS 60.9 (2013): 567–571. Print.
@article{4170377,
  abstract     = {We present an offline calibration procedure to correct the nonlinearity due element mismatch in the digital-to-analog converter (DAC) of a multibit Sigma Delta-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.},
  author       = {De Bock, Maarten and Xing, Xinpeng and Weyten, Ludo and Gielen, Georges and Rombouts, Pieter},
  issn         = {1549-7747},
  journal      = {IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS},
  language     = {eng},
  number       = {9},
  pages        = {567--571},
  title        = {Calibration of DAC mismatch errors in sigma delta ADCs based on a sine-wave measurement},
  url          = {http://dx.doi.org/10.1109/TCSII.2013.2268413},
  volume       = {60},
  year         = {2013},
}

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