A charge pump based timing-skew calibration for time-interleaved ADC
Zhang P.2; Chen Z.2; Wei H.-G.3; Sin S.-W.3; Seng-Pan U.3; Wang Z.2; Martins R.P.1,3
2011-10-13
Conference Name54th IEEE International Midwest Symposium on Circuits and Systems (MWSCAS)
Source PublicationMidwest Symposium on Circuits and Systems
Conference DateAUG 07-10, 2011
Conference PlaceYonsei Univ, Seoul, SOUTH KOREA
Abstract

This paper presents a background-calibration technique of timing skew for time-interleaved analog-to-digital converters (TIADCs). Without any kind of additional calibration signals, the timing skew between any two adjacent interleaved channels is detected by the capacitive charge pumps, and minimized by the digitally controlled delay elements (DCDEs). The calibration behaviors are analyzed and verified on transistor-level simulations. An 8-bit 4-channel TIADC is used as an example for demonstration. The simulation results show that the proposed technique can improve the SNDR from 35.1 dB to 49.6 dB at Nyquist input frequency as the extreme case. © 2011 IEEE.

KeywordAdc Calibration Charge Pump Time-interleaved (Ti) Timing Skew
DOIhttp://doi.org/10.1109/MWSCAS.2011.6026341
URLView the original
Indexed BySCI
Language英语
WOS Research AreaComputer Science ; Engineering
WOS SubjectComputer Science, Information Systems ; Engineering, Electrical & Electronic
WOS IDWOS:000296057200078
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Cited Times [WOS]:0   [WOS Record]     [Related Records in WOS]
Document TypeConference paper
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Faculty of Science and Technology
Affiliation1.Instituto Superior Técnico
2.Tsinghua University
3.Universidade de Macau
Recommended Citation
GB/T 7714
Zhang P.,Chen Z.,Wei H.-G.,et al. A charge pump based timing-skew calibration for time-interleaved ADC[C],2011.
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