{"title":"A 12-bit 8GS/s RF Sampling DAC with Code-Dependent Nonlinearity Compensation and Intersegmental Current-Mismatch Calibration in 5nm FinFET","authors":"Byeongwoo Koo, SungHan Do, Sang-Gyu Nam, H. Shin, Sungno Lee, Eunhye Oh, Jaemin Hong, Jungho Lee, Young-Sae Cho, Michael Choi, Jongshin Shin","doi":"10.1109/vlsitechnologyandcir46769.2022.9830442","DOIUrl":null,"url":null,"abstract":"This paper presents a 12-bit 8GS/s RF sampling current-steering DAC in a 5nm FinFET process. To minimize code-dependent nonlinearity caused by the timing differences between switch drivers, the proposed timing mismatch compensation (TMC) architecture is presented. For high static linearity with small size current cell, an on-chip current cell calibration scheme is implemented with absolute DAC (0.0625LSB/code accuracy). The proposed DAC achieves 72.2dBc SFDR, while consuming 169mW at 8GS/s sampling frequency.","PeriodicalId":332454,"journal":{"name":"2022 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2022-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2022 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/vlsitechnologyandcir46769.2022.9830442","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
This paper presents a 12-bit 8GS/s RF sampling current-steering DAC in a 5nm FinFET process. To minimize code-dependent nonlinearity caused by the timing differences between switch drivers, the proposed timing mismatch compensation (TMC) architecture is presented. For high static linearity with small size current cell, an on-chip current cell calibration scheme is implemented with absolute DAC (0.0625LSB/code accuracy). The proposed DAC achieves 72.2dBc SFDR, while consuming 169mW at 8GS/s sampling frequency.