{"title":"Charge scaling 10-bit successive approximation A/D converter with reduced input capacitance","authors":"O. Kursu, T. Rahkonen","doi":"10.1109/NORCHP.2011.6126700","DOIUrl":null,"url":null,"abstract":"A low power 10-bit successive approximation A/D converter which is designed for implantable bioelectronics is presented. The converter has a charge scaling digital-to-analog converter which also samples the input signal. The charge scaling capacitance is in a split-capacitor configuration that has a total input capacitance which is 95.5 % smaller compared to a conventional design and 25%smaller compared to a conventional split-capacitor design. The converter operates at 308 kS/s and has a single-ended structure. The circuit is simulated with a 0.35 µm 4M2P CMOS process. Simulation results for the proposed A/D converter are presented.","PeriodicalId":108291,"journal":{"name":"2011 NORCHIP","volume":"56 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 NORCHIP","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NORCHP.2011.6126700","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
A low power 10-bit successive approximation A/D converter which is designed for implantable bioelectronics is presented. The converter has a charge scaling digital-to-analog converter which also samples the input signal. The charge scaling capacitance is in a split-capacitor configuration that has a total input capacitance which is 95.5 % smaller compared to a conventional design and 25%smaller compared to a conventional split-capacitor design. The converter operates at 308 kS/s and has a single-ended structure. The circuit is simulated with a 0.35 µm 4M2P CMOS process. Simulation results for the proposed A/D converter are presented.
介绍了一种用于植入式生物电子学的低功耗10位连续近似A/D转换器。该转换器具有电荷缩放数模转换器,该转换器还对输入信号进行采样。电荷缩放电容采用分路电容配置,其总输入电容比传统设计小95.5%,比传统分路电容设计小25%。转换器的工作速度为308 k /s,具有单端结构。采用0.35µm 4M2P CMOS工艺对电路进行了仿真。给出了所提出的A/D转换器的仿真结果。