{"title":"A low voltage 8.4 ppm/°C voltage reference based on subthreshold MOSFETs","authors":"Lixia Zheng, Jin Wu, Xia Zhao","doi":"10.1109/EDSSC.2011.6117666","DOIUrl":null,"url":null,"abstract":"A CMOS voltage reference based on subthreshold operation is proposed. The current mirror mismatch error resulting from the channel length modulation effect is improved by using a self-cascode operational amplifer. The reference generates a constant reference voltage of 639 mV at supply voltage of 1.2V with power consumption of 18uW at room temperature fabricated in CSMC 0.18um CMOS technology. It achieves a temperature coefficient of 8.4ppm/°C for the temperature range from •20 °C to 120 °C","PeriodicalId":6363,"journal":{"name":"2011 IEEE International Conference of Electron Devices and Solid-State Circuits","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2011-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 IEEE International Conference of Electron Devices and Solid-State Circuits","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EDSSC.2011.6117666","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
A CMOS voltage reference based on subthreshold operation is proposed. The current mirror mismatch error resulting from the channel length modulation effect is improved by using a self-cascode operational amplifer. The reference generates a constant reference voltage of 639 mV at supply voltage of 1.2V with power consumption of 18uW at room temperature fabricated in CSMC 0.18um CMOS technology. It achieves a temperature coefficient of 8.4ppm/°C for the temperature range from •20 °C to 120 °C
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