Adaptive calibration of gain and offset errors for time-interleaved ADCs

Gao Xue Xu*, Bo Yan, Qiang Li, Guang Jun Li

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Citations (Scopus)

Abstract

Time-interleaved (TI) Analog-to-Digital Converters (ADC) are efficient for high-speed data acquisition. However, mismatches among different channels in a TIADC system due to manufacturing process variations cause distortion in the sampled signal and degrade the SNR and SFDR significantly. The offset and gain mismatches are the two important error sources for the TIADC system. In this paper, a methodology based on Least Mean Square (LMS) adaptive algorithm is proposed for simultaneous compensation of the gain and offset mismatches. The proposed method is also adaptive to the slow changes of the mismatches caused by temperature variation and aging effect. Numerical simulations are conducted to validate the adaptive algorithm.

Original languageEnglish
Title of host publicationPrimeAsia 2010 - 2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics
Pages77-80
Number of pages4
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics, PrimeAsia 2010 - Shanghai, China
Duration: 22 Sept 201024 Sept 2010

Publication series

NamePrimeAsia 2010 - 2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics

Conference

Conference2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics, PrimeAsia 2010
Country/TerritoryChina
CityShanghai
Period22/09/1024/09/10

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