{"title":"Design of Charge Pump with Low Voltage Differential Current Mirror in 22nm CMOS Technology","authors":"Qingbo Cai, Zhiqun Li, Zhennan Li, Yan Yao, Xiaowei Wang, Bofan Chen","doi":"10.1109/ICICM54364.2021.9660364","DOIUrl":null,"url":null,"abstract":"In this paper, based on TSMC 22nm CMOS process, a Charge Pump with a working frequency of 50MHz is designed. In order to further expand the output voltage range with current matching of CP when charging and discharging, a CP structure based on low voltage differential current mirror technology was proposed. Rail-to-rail operational amplifier is used to clamp the voltage and improve the matching accuracy of charge current and discharge current of CP.","PeriodicalId":6693,"journal":{"name":"2021 6th International Conference on Integrated Circuits and Microsystems (ICICM)","volume":"5 1","pages":"218-221"},"PeriodicalIF":0.0000,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 6th International Conference on Integrated Circuits and Microsystems (ICICM)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICICM54364.2021.9660364","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
In this paper, based on TSMC 22nm CMOS process, a Charge Pump with a working frequency of 50MHz is designed. In order to further expand the output voltage range with current matching of CP when charging and discharging, a CP structure based on low voltage differential current mirror technology was proposed. Rail-to-rail operational amplifier is used to clamp the voltage and improve the matching accuracy of charge current and discharge current of CP.
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