@inproceedings{0aa6af60cf0e4227b1964f4d20a576cc,
title = "A Fast Converging Correlation-Based Background Timing Skew Calibration Technique by Digital Windowing for Time-Interleaved ADCs",
abstract = "High-speed time-interleaved analog-to-digital converters (TI-ADCs) are sensitive to timing skew mismatch. Autocorrelation-based background timing skew calibration techniques require small hardware overhead as they rely on the TI-ADC input signal for calibration. However, such techniques suffer from a very long convergence time. This paper proposes a new correlation-based technique that boosts convergence speed by orders of magnitude compared to existing autocorrelation-based techniques. The technique uses a digital window detector and calculates the signal correlation funnction around zero-crossings only. Practical design considerations including thermal noise, clock jitter, quantization and offset mismatch are discussed. Behavioral simulation results for two TI-ADCs with different speeds, resolutions and interleaving factors are presented.",
keywords = "analog-to-digital converter, background calibration, mismatch, time-interleaved, timing skew",
author = "Yunsong Tao and Kareem Ragab and Jin Shao and Pengpeng Chen and Yi Zhong and Lu Jie and Nan Sun",
note = "Publisher Copyright: {\textcopyright} 2022 IEEE.; 2022 IEEE International Symposium on Circuits and Systems, ISCAS 2022 ; Conference date: 27-05-2022 Through 01-06-2022",
year = "2022",
doi = "10.1109/ISCAS48785.2022.9937769",
language = "English",
series = "Proceedings - IEEE International Symposium on Circuits and Systems",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "21--25",
booktitle = "IEEE International Symposium on Circuits and Systems, ISCAS 2022",
address = "United States",
}