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Bandwidth-efficient calibration method for nonlinear errors in M-channel time-interleaved ADCs
National University of Def Technology, Peoples R China.
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, Faculty of Science & Engineering.
National University of Def Technology, Peoples R China.
National University of Def Technology, Peoples R China.
2016 (English)In: Analog Integrated Circuits and Signal Processing, ISSN 0925-1030, E-ISSN 1573-1979, Vol. 86, no 2, 275-288 p.Article in journal (Refereed) PublishedText
Abstract [en]

In order to enhance the effective resolution of time-interleaved analog-to-digital converters (TI-ADCs), both linear and nonlinear channel mismatches should be carefully calibrated. This paper concentrates on a bandwidth-efficient background calibration method for nonlinear errors in M-channel TI-ADCs. It utilizes the least-mean square algorithm as well as a certain degree of oversampling to achieve adaptive mismatch tracking. The calibration performance and computational complexity are investigated and evaluated through behavioral-level simulations. Furthermore, a calibration strategy for narrow-band input signals is proposed and verified as an improvement of the basic calibration structure for such signals.

Place, publisher, year, edition, pages
SPRINGER , 2016. Vol. 86, no 2, 275-288 p.
Keyword [en]
Background Calibration; Bandwidth efficient; Nonlinear errors; M-channel; Time-interleaved ADCs
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:liu:diva-124626DOI: 10.1007/s10470-015-0677-xISI: 000368182800012OAI: oai:DiVA.org:liu-124626DiVA: diva2:901797
Available from: 2016-02-09 Created: 2016-02-08 Last updated: 2016-02-09

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Johansson, Håkan
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