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Adaptive Time-Interleaved ADC Offset Compensation by Nonwhite Data Chopping

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4 Author(s)
Vitali, S. ; Adv. Res. Center for Electron. Syst. (ARCES), Univ. of Bologna, Bologna, Italy ; Cimatti, G. ; Rovatti, R. ; Setti, G.

This brief makes an important step forward on the ideas first presented in our earlier paper about the use of nonwhite chopping sequences for offset compensation in time-interleaved analog-to-digital converters. More specifically, we present an adaptive system that takes advantage of nonwhite chopping in slowly nonstationary settings. Simulations show that by using this technique the estimation time and the signal-to-noise ratio are significantly improved with respect to white chopping.

Published in:

Circuits and Systems II: Express Briefs, IEEE Transactions on  (Volume:56 ,  Issue: 11 )

Date of Publication:

Nov. 2009

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