{"title":"A temperature and voltage-insensitive ring oscillator","authors":"Tianting Zhao, Yue Zhuo, Xin Yang, Yuchen Wang, Qing Miao, Fangchao Lou, Zhiqiang Liu, Tianzhi Li","doi":"10.1109/EEI59236.2023.10212739","DOIUrl":null,"url":null,"abstract":"Ring oscillator is widely used in modern electronic systems due to its ease of implementation. However, its performance suffers severely from temperature and voltage variations. This paper presents a temperature and voltage-insensitive ring oscillator that is realized by incorporating negative feedback using a switched-capacitive resistor and near-zero temperature coefficient composite resistors. Implemented using a 0.18um CMOS process, the proposed design exhibits a frequency variation of 0.92% over a temperature range of -40°C to 125°C and a variation of 2.8% with supply voltage ranging from 1.2V to 2.1V. The results demonstrate the practicality of the proposed design for temperature and voltage-insensitive applications.","PeriodicalId":363603,"journal":{"name":"2023 5th International Conference on Electronic Engineering and Informatics (EEI)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2023 5th International Conference on Electronic Engineering and Informatics (EEI)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EEI59236.2023.10212739","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
Ring oscillator is widely used in modern electronic systems due to its ease of implementation. However, its performance suffers severely from temperature and voltage variations. This paper presents a temperature and voltage-insensitive ring oscillator that is realized by incorporating negative feedback using a switched-capacitive resistor and near-zero temperature coefficient composite resistors. Implemented using a 0.18um CMOS process, the proposed design exhibits a frequency variation of 0.92% over a temperature range of -40°C to 125°C and a variation of 2.8% with supply voltage ranging from 1.2V to 2.1V. The results demonstrate the practicality of the proposed design for temperature and voltage-insensitive applications.