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.
UR - http://www.scopus.com/inward/record.url?scp=78650132085&partnerID=8YFLogxK
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 -