DIGITAL BACKGROUND CALIBRATION OF SUBSAMPLING TIME-INTERLEAVED ADCS

Francesco Centurelli, Pietro MonsurrĂ², Alessandro Trifiletti
Abstract:
A technique for the digital background calibration of subsampling time-interleaved analog-to-digital converters is proposed. The technique corrects the errors due to gain, offset and timing mismatches among the time-interleaved channels by estimating and nulling the errors with respect to a reference channel through least mean squares loops. Wideband undersampled differentiator filters are exploited thus enabling digital background calibration of timing skews even with wideband input signals outside the first Nyquist band.
Download:
IMEKO-IWADC-2011-37.pdf
DOI:
-
Event details
IMEKO TC:
TC4
Event name:
IWADC 2011
Title:

16th IMEKO International Workshop on ADC Modeling and Testing - Data Converter Design, Modeling and Testing (together with IEEE ADC Forum) (IWADC)

Place:
Orvieto, ITALY
Time:
30 June 2011 - 01 July 2011