{"title":"Voltage reference with second order curvature correction","authors":"Iustin-Catalin Necula, C. Popa","doi":"10.1109/SMICND.2014.6966451","DOIUrl":null,"url":null,"abstract":"This paper describes a bandgap voltage reference with second order curvature correction which utilizes a cvasi-independent temperature current and a Buck voltage transfer cell to compensate the non-linear term of the VBE's expression. The proposed circuit is implemented in a 0.35um CMOS technology and achieves a 2.36ppm/ C temperature coefficient (TC) in a temperature range from -40 to 150 C. The nominal supply voltage is 3V and the consumed power is 558uW. The power supply rejection ratio (PSRR) is -50dB at 10kHz and -30dB at 100kHz.","PeriodicalId":6616,"journal":{"name":"2014 International Semiconductor Conference (CAS)","volume":"37 1","pages":"251-254"},"PeriodicalIF":0.0000,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2014 International Semiconductor Conference (CAS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SMICND.2014.6966451","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5
Abstract
This paper describes a bandgap voltage reference with second order curvature correction which utilizes a cvasi-independent temperature current and a Buck voltage transfer cell to compensate the non-linear term of the VBE's expression. The proposed circuit is implemented in a 0.35um CMOS technology and achieves a 2.36ppm/ C temperature coefficient (TC) in a temperature range from -40 to 150 C. The nominal supply voltage is 3V and the consumed power is 558uW. The power supply rejection ratio (PSRR) is -50dB at 10kHz and -30dB at 100kHz.
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