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Uniform Quantization Theory-Based Linearity Calibration for Split Capacitive DAC in an SAR ADC
Jianwei Liu1,2; Yan Zhu1; Chi-Hang Chan1,2; Sai-Weng Sin1,2; Seng-Pan U1,2,3; Rui Paulo da Silva Martins1,2
2016-07-01
Source PublicationIEEE Transactions on Very Large Scale Integration (VLSI) Systems
ISSN10638210
Volume24Issue:7Pages:2603-2607
Abstract

This brief presents a uniform quantization theory (UQT)-based digital-to-analog converter (DAC) linearity calibration for a successive approximation register (SAR) analog-to-digital converter. According to the uniform quantization noise property, the nonlinearity due to the parasitics in an LSB array of the split-DAC structure is estimated and corrected in the digital domain. The calibration requires that the characteristic of the input signal must fulfill the prerogative of the quantization theory. The advantages lie in its low design complexity with no additional analog circuit modification. The proposed calibration is verified by both behavioral simulations and measured results in an SAR ADC. The measurements are based on a prototype implemented with large nonlinear split-DACs, which demonstrate that the UQT-based linearity calibration can effectively improve the Signal to Noise and Distortion (SNDR) from 56.9 to 63.3 dB at dc input with a sampling frequency of 120 MS/s.

KeywordBackground Linearity Calibration Splitdigital- To-analog Converter (Dac) Successive Approximation Register (Sar) Adc Uniform Quantization Theory (Uqt)
DOI10.1109/TVLSI.2015.2509164
URLView the original
Indexed BySCI
Language英语
WOS Research AreaComputer Science ; Engineering
WOS SubjectComputer Science, Hardware & Architecture ; Engineering, Electrical & Electronic
WOS IDWOS:000380031000018
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Cited Times [WOS]:3   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionINSTITUTE OF MICROELECTRONICS
DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Corresponding AuthorJianwei Liu; Yan Zhu; Chi-Hang Chan; Sai-Weng Sin; Seng-Pan U; Rui Paulo da Silva Martins
Affiliation1.Univ Macau, State Key Lab Analog & Mixed Signal VLSI, Macau 999078, Peoples R China
2.Univ Macau, Fac Sci & Technol, Dept Elect & Comp Engn, Macau 999078, Peoples R China
3.Synopsys Macau Ltd, Mississauga, ON L5B 1M2, Canada
First Author AffilicationUniversity of Macau
Corresponding Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Jianwei Liu,Yan Zhu,Chi-Hang Chan,et al. Uniform Quantization Theory-Based Linearity Calibration for Split Capacitive DAC in an SAR ADC[J]. IEEE Transactions on Very Large Scale Integration (VLSI) Systems,2016,24(7):2603-2607.
APA Jianwei Liu,Yan Zhu,Chi-Hang Chan,Sai-Weng Sin,Seng-Pan U,&Rui Paulo da Silva Martins.(2016).Uniform Quantization Theory-Based Linearity Calibration for Split Capacitive DAC in an SAR ADC.IEEE Transactions on Very Large Scale Integration (VLSI) Systems,24(7),2603-2607.
MLA Jianwei Liu,et al."Uniform Quantization Theory-Based Linearity Calibration for Split Capacitive DAC in an SAR ADC".IEEE Transactions on Very Large Scale Integration (VLSI) Systems 24.7(2016):2603-2607.
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