General Analysis on the Impact of Phase-Skew in Time-Interleaved ADCs
El-Chammas, M.; Murmann, B.
Circuits and Systems I: Regular Papers, IEEE Transactions on
Volume 56, Issue 5, May 2009 Page(s):902 - 910
Digital Object Identifier   10.1109/TCSI.2009.2015206
Summary:Time-interleaved analog-to-digital converters (TIADCs) are sensitive to various mismatches that distort the sampled signal. Standard TIADC analysis assumes a narrowband sinusoidal input, which may result in pessimistic matching constraints for system-specific ADCs used with wideband input signals. Closed-form expressions bounding the acceptable phase-skew for wideband systems are derived and are validated through simulations. In one of the examples presented, it is shown that standard analysis can overconstrain the bound on acceptable phase-skew variance by a factor of three.

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