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Passive Noise Shaping in SAR ADC With Improved Efficiency
Song, Yan1; Chan, Chi-Hang2; Zhu, Yan2; Geng, Li1; Seng-Pan, U.3; Martins, Rui Paulo3
2018-02
Source PublicationIEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS
ISSN1063-8210
Volume26Issue:2Pages:416-420
Abstract

This brief reports a passive noise-shaping (PNS) scheme for successive approximation register (SAR) analog-to-digital converter (ADC) based on the two-step integration with passive gain and comparator gain techniques. The analysis shows that the proposed method achieves a better noise-shaping (NS) efficiency than prior arts, which enhances the noise attenuation by 14 dB. A design example is provided which further adopts the delta-sampling technique to relieve the conversion efficiency loss due to the oversampling in the NS SAR ADC. The efficiency of the proposed PNS scheme and the performance of the ADC are verified by simulation achieving a 13.2 effective number of bits with a 10-b ADC architecture and eight conversion cycles for a signal bandwidth of 2 MHz sampled at 100 MS/s. The calculated Schreier figure of merit (FoM) and Walden FoM are 176.8 dB and 16 fJ/conv.-step, respectively.

KeywordAnalog-to-digital Converter (Adc) Delta Sampling Oversampling Passive Noise Shaping (Pns) Successive Approximation Register (Sar)
DOI10.1109/TVLSI.2017.2764742
URLView the original
Indexed BySCI
Language英语
WOS Research AreaComputer Science ; Engineering
WOS SubjectComputer Science, Hardware & Architecture ; Engineering, Electrical & Electronic
WOS IDWOS:000423464000018
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
The Source to ArticleWOS
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Cited Times [WOS]:2   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionINSTITUTE OF MICROELECTRONICS
Corresponding AuthorSong, Yan; Chan, Chi-Hang
Affiliation1.Department of Microelectronics, Xi’an Jiaotong University, Xi’an, China
2.State Key Laboratory of Analog and Mixed Signal VLSI, University of Macau, Macao, China
3.Department of Electrical and Computer Engineering, Faculty of Science and Technology, State Key Laboratory of Analog and Mixed Signal VLSI, University of Macau, Macao, China
Corresponding Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Song, Yan,Chan, Chi-Hang,Zhu, Yan,et al. Passive Noise Shaping in SAR ADC With Improved Efficiency[J]. IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS,2018,26(2):416-420.
APA Song, Yan,Chan, Chi-Hang,Zhu, Yan,Geng, Li,Seng-Pan, U.,&Martins, Rui Paulo.(2018).Passive Noise Shaping in SAR ADC With Improved Efficiency.IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS,26(2),416-420.
MLA Song, Yan,et al."Passive Noise Shaping in SAR ADC With Improved Efficiency".IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS 26.2(2018):416-420.
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