{"title":"A Low Noise CMOS Bandgap Voltage Reference Using Chopper Stabilization Technique","authors":"Yuliang Ma, Chunfeng Bai, Yang Wang, Donghai Qiao","doi":"10.1109/ICICM50929.2020.9292198","DOIUrl":null,"url":null,"abstract":"A low noise CMOS bandgap voltage reference is designed using the noise reduction technique of chopper stabilization in this paper. The mechanism of the proposed chopper technique is discussed in detail and the corresponding circuit was designed and fabricated using a high temperature and high pressure CMOS 0.18\\mu m$ technology. The experimental results show that the output noise power spectral density was reduced by 60dB at 1Hz. In addition, the untrimmed voltage reference has a temperature coefficient in the −45°C to +175°C range of 43ppm/°C (mean) at a +5 V power supply.","PeriodicalId":364285,"journal":{"name":"2020 IEEE 5th International Conference on Integrated Circuits and Microsystems (ICICM)","volume":"144 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 IEEE 5th International Conference on Integrated Circuits and Microsystems (ICICM)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICICM50929.2020.9292198","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
A low noise CMOS bandgap voltage reference is designed using the noise reduction technique of chopper stabilization in this paper. The mechanism of the proposed chopper technique is discussed in detail and the corresponding circuit was designed and fabricated using a high temperature and high pressure CMOS 0.18\mu m$ technology. The experimental results show that the output noise power spectral density was reduced by 60dB at 1Hz. In addition, the untrimmed voltage reference has a temperature coefficient in the −45°C to +175°C range of 43ppm/°C (mean) at a +5 V power supply.
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