General analysis on the impact of phase-skew in time-interleaved ADCs
El-Chammas, M.; Murmann, B.
Circuits and Systems, 2008. ISCAS 2008. IEEE International Symposium on
Volume , Issue , 18-21 May 2008 Page(s):17 - 20
Digital Object Identifier   10.1109/ISCAS.2008.4541343
Summary:Time-interleaved analog-to-digital converters (TIADC) are sensitive to various mismatches that distort the sampled signal. Standard TIADC analysis assumes a 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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