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A14-bit wide temperature range differential SAR ADC with an on-chip multi-segmentBGR
Qiao, Ning; Gao, Jiantou; Zhao, Kai; Yang, Bo; Liu, Zhongli; Yu, Fang; Qiao, N.(qiaoning@ime.ac.cn)
2011
Source PublicationJournal of Semiconductors
ISSN16744926
Volume32Issue:8Pages:85003
AbstractA14-bit low power self-timed differential successive approximation(SAR) ADC with an on-chip multi-segment bandgap reference(BGR) is described. An on-chip multi-segment BGR, which has a temperature coefficient of1.3 ppm/°C and a thermal drift of about100μV over the temperature range of-40 to120°C is implemented to provide a high precision reference voltage for the SAR ADC. The Gray code form is utilized instead of binary form mode control to reduce substrate noise and enhance the linearity of the whole system. Self-timed bit-cycling is adopted to enhance the time efficiency. The14-bit ADC was fabricated in a TSMC0.13μm CMOS process. With the on-chip BGR, the SAR ADC achieves an SNDR of81.2 dB(13.2 ENOB) and an SFDR of85.2 dB with a conversion rate of2 MS/s at room temperature and can keep an ENOB of more than12 bits at a conversion rate of2 MS/s over the temperature range from-40 to120°C.?2011 Chinese Institute of Electronics.
metadata_83半导体集成技术工程研究中心
KeywordCmos Integrated Circuits
Subject Area微电子学
Indexed ByEI
Language英语
Date Available2012-06-14
Document Type期刊论文
Identifierhttp://ir.semi.ac.cn/handle/172111/23071
Collection半导体集成技术工程研究中心
Corresponding AuthorQiao, N.(qiaoning@ime.ac.cn)
Recommended Citation
GB/T 7714
Qiao, Ning,Gao, Jiantou,Zhao, Kai,et al. A14-bit wide temperature range differential SAR ADC with an on-chip multi-segmentBGR[J]. Journal of Semiconductors,2011,32(8):85003.
APA Qiao, Ning.,Gao, Jiantou.,Zhao, Kai.,Yang, Bo.,Liu, Zhongli.,...&Qiao, N..(2011).A14-bit wide temperature range differential SAR ADC with an on-chip multi-segmentBGR.Journal of Semiconductors,32(8),85003.
MLA Qiao, Ning,et al."A14-bit wide temperature range differential SAR ADC with an on-chip multi-segmentBGR".Journal of Semiconductors 32.8(2011):85003.
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