Abstract
Mismatches between sub-channels limit the dynamic performance of time-interleaved analog-to-digital converters (TI-ADCs). This paper proposes a correlation-based method of calibration for timing mismatches in M-channel TI-ADCs by using the cross-correlation between sub-channels of the output signals to estimate the temporal deviations. The output signal is calibrated by reducing the arbitrary order distortion, which is approximated by multiplying the distortions with the estimated coefficients of mismatch. Furthermore, a reconfigurable strategy composed of stages of arbitrary calibration is proposed to achieve suitable stages with the requisite dynamic performance. Finally, the calibration performance of the proposed method is verified through simulations that use different input signals and strengths of mismatch.
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References
Black, W. C., & Hodges, D. A. (1980). Time interleaved converter arrays. IEEE Journal of Solid-State Circuits, 15(6), 1022–1029.
Razavi, B. (2013). Design considerations for interleaved adcs. IEEE Journal of Solid-State Circuits, 48(8), 1806–1817.
Johansson, H., & Lowenborg, P. (2002). Reconstruction of nonuniformly sampled bandlimited signals by means of digital fractional delay filters. IEEE Transactions on Signal Processing, 50(11), 2757–2767.
Khan, S. R., Hashmi, A. A., & Choi, G. (2017). A fully digital background calibration technique for m-channel time-interleaved adcs. Circuits Systems and Signal Processing, 36(8), 3303–3319.
Mafi, H., Yargholi, M., & Yavari, M. (2017). Digital blind background calibration of imperfections in time-interleaved adcs. IEEE Transactions on Circuits and Systems I: Regular Papers, 64(6), 1504–1512.
Li, X., Huang, C., Ding, D., & Wu, J. (2019). A review on calibration methods of timing-skew in time-interleaved adcs. Journal of Circuits, Systems and Computers.
Tsai, T., Hurst, P. J., & Lewis, S. H. (2006). Bandwidth mismatch and its correction in time-interleaved analog-to-digital converters. IEEE Transaction of Circuits Systems II, 53(10), 1133–1137.
Jin, H., & Edward, L. (2000). A digital-background calibration technique for minimizing timing-error effects in time-interleaved adcs. IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, 47(7), 603–613.
Li, J., Wu, S., Liu, Y., Ning, N., & Yu, Q. (2014). A digital timing mismatch calibration technique in time-interleaved adcs. IEEE Transactions on Circuits and Systems II: Express Briefs, 42(7), 486–490.
Yin, M., & Ye, Z. (2020). First order statistic based fast blind calibration of time skews for time-interleaved adcs. IEEE Transactions on Circuits and Systems II: Express Briefs, 67(1), 162–166.
Le Duc, H., Nguyen, D. M., Jabbour, C., Desgreys, P., Jamin, O., & Nguyen, V. T. (2017). Fully digital feedforward background calibration of clock skews for sub-sampling tiadcs using the polyphase decomposition. IEEE Transactions on Circuits and Systems I: Regular Papers, 64(6), 1515–1528.
Wang, Y., Johansson, H., Xu, H., & Sun, Z. (2015). Joint blind calibration for mixed mismatches in two-channel time-interleaved adcs. IEEE Transactions on Circuits and Systems I: Regular Papers, 62(6), 1508–1517.
Wang, Y., Johansson, H., & Xu, H. (2015). Adaptive background estimation for static nonlinearity mismatches in two-channel tiadcs. IEEE Transactions on Circuits and Systems II: Express Briefs, 62(3), 226–230.
Liu, X., Xu, H., Johansson, H., Wang, Y., & Li, N. (2020). Correlation-based calibration for nonlinearity mismatches in dual-channel tiadcs. IEEE Transactions on Circuits and Systems II: Express Briefs, 67(3), 585–589.
Poulton, K., Corcoran, J. J., & Hornak, T. (1987). A 1-ghz 6-bit adc system. IEEE Journal of Solid-State Circuits, 22(6), 962–970.
Xu, B., & Chiu, Y. (2015). Comprehensive background calibration of time-interleaved analog-to-digital converters. IEEE Transactions on Circuits and Systems I: Regular Papers, 62(5), 1306–1314.
Huang, S., & Levy, B. C. (2016). Adaptive blind calibration of timing offset and gain mismatch for two-channel time-interleaved adcs. IEEE Transactions on Circuits and Systems I: Regular Papers, 53(5), 1278–1288.
Tertinek, S., & Vogel, C. (2007). Reconstruction of two-periodic nonuniformly sampled bandlimited signals using a discrete-time differentiator and a time-varying multiplier. IEEE Transaction on Circuits System II, 54(7), 616–620.
Liu, X., Xu, H., Wang, Y., Dai, Y., Li, N., & Liu, G. (2019). Calibration for sample-and-hold mismatches in m-channel tiadcs based on statistics. Applied Sciences-Basel,9(198).
Rabiner, L. R., & Gold, B. (1975). Theory and application of digital signal processing. Englewood Cliffs, NJ: Prentice-Hall.
Jamal, S. M., Fu, D., Chang, N. C., Hurst, P. J., & Lewis, S. H. (2002). A 10-b 120-msample/s time-interleaved analog-to-digital converter with digital background calibration. IEEE Journal of Solid-State Circuits, 37(12), 1618–1627.
Seo, M., Rodwell, M. J. W., & Madhow, U. (2006). A low computation adaptive blind mismatch correction for time-interleaved adcs. In 2006 49th IEEE International Midwest Symposium on Circuits and Systems (Vol. 1, pp. 292–296).
Yu, B., Chen, C., Ye, F., & Ren, J. (2013). A mixed sample-time error calibration technique in time-interleaved adcs. IEICE Electronics Express, 10(24), 130–882.
Elbornsson, J., Gustafsson, F., & Eklund, J. (2004). Blind adaptive equalization of mismatch errors in a time-interleaved a/d converter system. IEEE Transactions on Circuits and Systems I: Regular Papers, 51(1), 151–158.
Haftbaradaran, A., & Martin, K. W. (2008). A background sample-time error calibration technique using random data for wide-band high-resolution time-interleaved adcs. IEEE Transactions on Circuits and Systems II: Express Briefs, 51(1), 151–158.
Gardner, W., & Spooner, C. (1994). The cumulant theory of cyclostationary time-series. I. Foundation. IEEE Transactions on Signal Processing, 61(12), 3387–3408.
Kay, S. M. (1998). Fundamentals of statistical signal processing. London: Prentice-Hall PTR.
Tertinek, S., & Vogel, C. (2008). Reconstruction of nonuniformly sampled bandlimited signals using a differentiator-multiplier cascade. IEEE Transactions on Circuits and Systems I: Regular Papers, 55(8), 2273–2286.
Balestrieri, E., Daponte, P., & Rapuano, S. (2004). A state of the art on adc error compensation methods (Vol. 1, pp. 711–716).
Lundin, H., Skoglund, M., & Handel, P. (2004). A criterion for optimizing bit-reduced post-correction of ad converters. IEEE Transactions on Instrumentation and Measurement, 53(4), 1159–1166.
Crochiere, R. E., & Rabiner, L. R. (1983). Multirate Digital Signal Processing. New York: Prentice Hall.
Bellanger, M. G. (1984). Digital Processing of Signals. New York: Wiley.
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This work is supported by the National Natural Science Foundation of China (No. 61701509) and the Science and Technology on Analog Integrated Circuit Laboratory (No. JCKY2019210C027).
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Zhao, C., Diao, J., Xu, H. et al. Correlation-based reconfigurable blind calibration for timing mismatches in TI-ADCs. Analog Integr Circ Sig Process 107, 29–38 (2021). https://doi.org/10.1007/s10470-020-01788-6
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DOI: https://doi.org/10.1007/s10470-020-01788-6