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ASME Press Select Proceedings
International Conference on Instrumentation, Measurement, Circuits and Systems (ICIMCS 2011)
By
ISBN:
9780791859902
No. of Pages:
1400
Publisher:
ASME Press
Publication date:
2011
eBook Chapter
51 A Nonlinear Background Calibration Technique Foranalog-To-Digital Converters
By
Wu Chao
,
Wu Chao
Institute of Microelectronics,
Tsinghua University
, Beijing, 100084
, China
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Fule Li
,
Fule Li
Institute of Microelectronics,
Tsinghua University
, Beijing, 100084
, China
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Zhihua Wang
Zhihua Wang
Institute of Microelectronics,
Tsinghua University
, Beijing, 100084
, China
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Page Count:
5
-
Published:2011
Citation
Chao, W, Li, F, & Wang, Z. "A Nonlinear Background Calibration Technique Foranalog-To-Digital Converters." International Conference on Instrumentation, Measurement, Circuits and Systems (ICIMCS 2011). Ed. Ming, C. ASME Press, 2011.
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A nonlinear background calibration technique for pipelined ADCs is proposed. By dividing the raw output of the pipeline core into different segments addressed by the digital codes defined by the outputs of the first several stages, a code-by-code gain error and offset calibration by using least mean square (LMS) adaptive algorithm is introduced to eliminate the conversion nonlinearity due to circuit nonidealities including nonlinear opamp gain. Behavioral simulation results confirm its effectiveness in significantly improving the conversion accuracy. And comparing to existing techniques, it has less limitation on the nonlinear pattern and requires a smaller hardware overhead.
Topics:
Calibration
Abstract
Keywords:
Introduction
Nomenclature
Conclusion
References
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