A. Suadet, Thawatchai Thongleam, Arnon Kanjanop, Pratchayaporn Singhanath, Buncha Hirunsing, Weerasak Chuenta, V. Kasemsuwan
{"title":"A 0.8 V class-AB linear OTA using DTMOS for high-frequency applications","authors":"A. Suadet, Thawatchai Thongleam, Arnon Kanjanop, Pratchayaporn Singhanath, Buncha Hirunsing, Weerasak Chuenta, V. Kasemsuwan","doi":"10.1109/ICMSAO.2011.5775478","DOIUrl":null,"url":null,"abstract":"This paper presents a 0.8 V class-AB linear operational transconductance amplifier (OTA) using DTMOS for high-frequency applications. The circuit employs positive feedback to enhance the input impedance, and feed-forward technique to suppress the common-mode gain. The circuit is designed using 0.18 μm CMOS technology under 0.8 V supply. The simulation results show rail-to-rail input/output swing, suppressed common-mode response, and good linearity (less than −48 dB with input 0.6 Vpp, 5 MHz). The power dissipation is 155 μW.","PeriodicalId":6383,"journal":{"name":"2011 Fourth International Conference on Modeling, Simulation and Applied Optimization","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2011-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 Fourth International Conference on Modeling, Simulation and Applied Optimization","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICMSAO.2011.5775478","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5
Abstract
This paper presents a 0.8 V class-AB linear operational transconductance amplifier (OTA) using DTMOS for high-frequency applications. The circuit employs positive feedback to enhance the input impedance, and feed-forward technique to suppress the common-mode gain. The circuit is designed using 0.18 μm CMOS technology under 0.8 V supply. The simulation results show rail-to-rail input/output swing, suppressed common-mode response, and good linearity (less than −48 dB with input 0.6 Vpp, 5 MHz). The power dissipation is 155 μW.