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Split-SAR ADCs: Improved linearity with power and speed optimization
Yan Zhu1; Chi-Hang Chan1; U-Fat Chio1; Sai-Weng Sin1; Seng-Pan U1; Rui Paulo Martins1,2; Franco Maloberti3
2014
Source PublicationIEEE Transactions on Very Large Scale Integration (VLSI) Systems
ISSN10638210
Volume22Issue:2Pages:372-383
Abstract

This paper presents the linearity analysis of a successive approximation registers (SAR) analog-to-digital converters (ADC) with split DAC structure based on two switching methods: conventional charge-redistribution and V cm-based switching. The static linearity performance, namely the integral nonlinearity and differential nonlinearity, as well as the parasitic effects of the split DAC, are analyzed hereunder. In addition, a code-randomized calibration technique is proposed to correct the conversion nonlinearity in the conventional SAR ADC, which is verified by behavioral simulations, as well as measured results. Performances of both switching methods are demonstrated in 90 nm CMOS. Measurement results of power, speed, and linearity clearly show the benefits of using Vcm-based switching. © 1993-2012 IEEE.

KeywordLinearity Analysis Linearity Calibration Sar Adcs Split Dac Vcm-based Switching
DOIhttp://doi.org/10.1109/TVLSI.2013.2242501
URLView the original
Indexed BySCI
Language英语
WOS Research AreaComputer Science ; Engineering
WOS SubjectComputer Science, Hardware & Architecture ; Engineering, Electrical & Electronic
WOS IDWOS:000330216600017
The Source to ArticleScopus
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Cited Times [WOS]:31   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionINSTITUTE OF MICROELECTRONICS
Faculty of Science and Technology
DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Corresponding AuthorYan Zhu; Rui Paulo Martins; Franco Maloberti
Affiliation1.the State-Key-Laboratory Analog and Mixed-Signal VLSI, Faculty of Science and Technology, University of Macau, Macao 853, China
2.the Instituto Superior Técnico/TU, Lisbon 1049-001, Portugal
3.the Department of Electronics, University of Pavia, Pavia 27100, Italy
First Author AffilicationFaculty of Science and Technology
Corresponding Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Yan Zhu,Chi-Hang Chan,U-Fat Chio,et al. Split-SAR ADCs: Improved linearity with power and speed optimization[J]. IEEE Transactions on Very Large Scale Integration (VLSI) Systems,2014,22(2):372-383.
APA Yan Zhu.,Chi-Hang Chan.,U-Fat Chio.,Sai-Weng Sin.,Seng-Pan U.,...&Franco Maloberti.(2014).Split-SAR ADCs: Improved linearity with power and speed optimization.IEEE Transactions on Very Large Scale Integration (VLSI) Systems,22(2),372-383.
MLA Yan Zhu,et al."Split-SAR ADCs: Improved linearity with power and speed optimization".IEEE Transactions on Very Large Scale Integration (VLSI) Systems 22.2(2014):372-383.
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