Comparator common-mode variation effects analysis and its application in SAR ADCs

Long Chen; Arindam Sanyal; Ji Ma; Xiyuan Tang; Nan Sun

doi:10.1109/ISCAS.2016.7538972

Comparator common-mode variation effects analysis and its application in SAR ADCs

Long Chen, Arindam Sanyal, Ji Ma, Xiyuan Tang, Nan Sun

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

33 Scopus citations

Abstract

The effects of comparator input common-mode voltage Vcm are analyzed in this paper. The analysis clearly shows a trade-off in the choice of Vcm in terms of offset, noise, power and speed. Based on the analysis, an energy efficient SAR ADC switching technique is proposed with less Vcm variation and better linearity compared with the widely used monotonic switching technique. Both the simulation results and prototype measured results match with the analysis.

Original language	English (US)
Title of host publication	ISCAS 2016 - IEEE International Symposium on Circuits and Systems
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	2014-2017
Number of pages	4
ISBN (Electronic)	9781479953400
DOIs	https://doi.org/10.1109/ISCAS.2016.7538972
State	Published - Jul 29 2016
Externally published	Yes
Event	2016 IEEE International Symposium on Circuits and Systems, ISCAS 2016 - Montreal, Canada Duration: May 22 2016 → May 25 2016

Publication series

Name	Proceedings - IEEE International Symposium on Circuits and Systems
Volume	2016-July
ISSN (Print)	0271-4310

Other

Other	2016 IEEE International Symposium on Circuits and Systems, ISCAS 2016
Country/Territory	Canada
City	Montreal
Period	5/22/16 → 5/25/16

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/ISCAS.2016.7538972

Cite this

Chen, L., Sanyal, A., Ma, J., Tang, X., & Sun, N. (2016). Comparator common-mode variation effects analysis and its application in SAR ADCs. In ISCAS 2016 - IEEE International Symposium on Circuits and Systems (pp. 2014-2017). Article 7538972 (Proceedings - IEEE International Symposium on Circuits and Systems; Vol. 2016-July). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISCAS.2016.7538972

Comparator common-mode variation effects analysis and its application in SAR ADCs. / Chen, Long; Sanyal, Arindam; Ma, Ji et al.
ISCAS 2016 - IEEE International Symposium on Circuits and Systems. Institute of Electrical and Electronics Engineers Inc., 2016. p. 2014-2017 7538972 (Proceedings - IEEE International Symposium on Circuits and Systems; Vol. 2016-July).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Chen, L, Sanyal, A, Ma, J, Tang, X & Sun, N 2016, Comparator common-mode variation effects analysis and its application in SAR ADCs. in ISCAS 2016 - IEEE International Symposium on Circuits and Systems., 7538972, Proceedings - IEEE International Symposium on Circuits and Systems, vol. 2016-July, Institute of Electrical and Electronics Engineers Inc., pp. 2014-2017, 2016 IEEE International Symposium on Circuits and Systems, ISCAS 2016, Montreal, Canada, 5/22/16. https://doi.org/10.1109/ISCAS.2016.7538972

Chen L, Sanyal A, Ma J, Tang X, Sun N. Comparator common-mode variation effects analysis and its application in SAR ADCs. In ISCAS 2016 - IEEE International Symposium on Circuits and Systems. Institute of Electrical and Electronics Engineers Inc. 2016. p. 2014-2017. 7538972. (Proceedings - IEEE International Symposium on Circuits and Systems). doi: 10.1109/ISCAS.2016.7538972

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abstract = "The effects of comparator input common-mode voltage Vcm are analyzed in this paper. The analysis clearly shows a trade-off in the choice of Vcm in terms of offset, noise, power and speed. Based on the analysis, an energy efficient SAR ADC switching technique is proposed with less Vcm variation and better linearity compared with the widely used monotonic switching technique. Both the simulation results and prototype measured results match with the analysis.",

author = "Long Chen and Arindam Sanyal and Ji Ma and Xiyuan Tang and Nan Sun",

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AB - The effects of comparator input common-mode voltage Vcm are analyzed in this paper. The analysis clearly shows a trade-off in the choice of Vcm in terms of offset, noise, power and speed. Based on the analysis, an energy efficient SAR ADC switching technique is proposed with less Vcm variation and better linearity compared with the widely used monotonic switching technique. Both the simulation results and prototype measured results match with the analysis.

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Comparator common-mode variation effects analysis and its application in SAR ADCs

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