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

Gao Xue Xu; Bo Yan; Qiang Li; Guang Jun Li

doi:10.1109/PRIMEASIA.2010.5604956

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

University of Electronic Science and Technology of China

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-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 language	English
Title of host publication	PrimeAsia 2010 - 2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics
Pages	77-80
Number of pages	4
DOIs	https://doi.org/10.1109/PRIMEASIA.2010.5604956
Publication status	Published - 2010
Externally published	Yes
Event	2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics, PrimeAsia 2010 - Shanghai, China Duration: 22 Sept 2010 → 24 Sept 2010

Publication series

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

Conference

Conference	2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics, PrimeAsia 2010
Country/Territory	China
City	Shanghai
Period	22/09/10 → 24/09/10

Access to Document

10.1109/PRIMEASIA.2010.5604956

Cite this

Xu, G. X., Yan, B., Li, Q., & Li, G. J. (2010). Adaptive calibration of gain and offset errors for time-interleaved ADCs. In PrimeAsia 2010 - 2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics (pp. 77-80). Article 5604956 (PrimeAsia 2010 - 2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics). https://doi.org/10.1109/PRIMEASIA.2010.5604956

@inproceedings{a023ad8b11ce43db86bad24332880a81,

title = "Adaptive calibration of gain and offset errors for time-interleaved ADCs",

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.",

author = "Xu, \{Gao Xue\} and Bo Yan and Qiang Li and Li, \{Guang Jun\}",

year = "2010",

doi = "10.1109/PRIMEASIA.2010.5604956",

language = "English",

isbn = "9781424467372",

series = "PrimeAsia 2010 - 2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics",

pages = "77--80",

booktitle = "PrimeAsia 2010 - 2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics",

note = "2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics, PrimeAsia 2010 ; Conference date: 22-09-2010 Through 24-09-2010",

}

Xu, GX, Yan, B, Li, Q & Li, GJ 2010, Adaptive calibration of gain and offset errors for time-interleaved ADCs. in PrimeAsia 2010 - 2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics., 5604956, PrimeAsia 2010 - 2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics, pp. 77-80, 2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics, PrimeAsia 2010, Shanghai, China, 22/09/10. https://doi.org/10.1109/PRIMEASIA.2010.5604956

Adaptive calibration of gain and offset errors for time-interleaved ADCs. / Xu, Gao Xue; Yan, Bo; Li, Qiang et al.
PrimeAsia 2010 - 2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics. 2010. p. 77-80 5604956 (PrimeAsia 2010 - 2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics).

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

TY - GEN

T1 - Adaptive calibration of gain and offset errors for time-interleaved ADCs

AU - Xu, Gao Xue

AU - Yan, Bo

AU - Li, Qiang

AU - Li, Guang Jun

PY - 2010

Y1 - 2010

N2 - 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.

AB - 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.

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U2 - 10.1109/PRIMEASIA.2010.5604956

DO - 10.1109/PRIMEASIA.2010.5604956

M3 - Conference contribution

AN - SCOPUS:78650132085

SN - 9781424467372

T3 - PrimeAsia 2010 - 2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics

SP - 77

EP - 80

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

T2 - 2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics, PrimeAsia 2010

Y2 - 22 September 2010 through 24 September 2010

ER -

Xu GX, Yan B, Li Q, Li GJ. Adaptive calibration of gain and offset errors for time-interleaved ADCs. In PrimeAsia 2010 - 2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics. 2010. p. 77-80. 5604956. (PrimeAsia 2010 - 2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics). doi: 10.1109/PRIMEASIA.2010.5604956

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

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