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A Least-Squares Filter Design Technique for the Compensation of Frequency Response Mismatch Errors in Time-Interleaved A/D Converters

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2 Author(s)
Johansson, H. ; Dept. of Electr. Eng., Linkoping Univ., Linkoping ; Lowenborg, P.

This paper introduces a least-squares filter design technique for the compensation of frequency response mismatch errors in M-channel time-interleaved analog-to-digital converters. The overall compensation system is designed by determining M filter impulse responses analytically through M separate matrix inversions. The proposed technique offers an alternative to least-squares techniques that determine all filters simultaneously. Several design examples are included for illustration.

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Circuits and Systems II: Express Briefs, IEEE Transactions on  (Volume:55 ,  Issue: 11 )