{"title":"低功耗、增益增强自适应偏置型运算跨导放大器","authors":"T. Cao, D. Wisland, T. Lande, F. Moradi","doi":"10.1109/NORCHP.2009.5397853","DOIUrl":null,"url":null,"abstract":"A symmetrical PMOS OTA (Operational Transconductance Amplifier) is used to build an advanced rail-to-rail amplifier with improved DC-gain and reduced power consumption. By using the adaptive biasing circuit for two differential inputs, a low stand-by current can be achieved, reducing power consumption, while the DC-gain of the proposed OTA is improved by adding a partial feedback loop. Simulation shows that the OTA has a low static power consumption of 57.6 µW and a high FoM of 5.13 [(V/µs.pF)/µW] for a load capacitor of 10pF. The circuit is designed in a STM 90nm CMOS process.","PeriodicalId":308859,"journal":{"name":"2009 NORCHIP","volume":"13 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"16","resultStr":"{\"title\":\"Low-power, enhanced-gain adaptive-biasing-based Operational Transconductance Amplifiers\",\"authors\":\"T. Cao, D. Wisland, T. Lande, F. Moradi\",\"doi\":\"10.1109/NORCHP.2009.5397853\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A symmetrical PMOS OTA (Operational Transconductance Amplifier) is used to build an advanced rail-to-rail amplifier with improved DC-gain and reduced power consumption. By using the adaptive biasing circuit for two differential inputs, a low stand-by current can be achieved, reducing power consumption, while the DC-gain of the proposed OTA is improved by adding a partial feedback loop. Simulation shows that the OTA has a low static power consumption of 57.6 µW and a high FoM of 5.13 [(V/µs.pF)/µW] for a load capacitor of 10pF. The circuit is designed in a STM 90nm CMOS process.\",\"PeriodicalId\":308859,\"journal\":{\"name\":\"2009 NORCHIP\",\"volume\":\"13 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2009-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"16\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2009 NORCHIP\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/NORCHP.2009.5397853\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2009 NORCHIP","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NORCHP.2009.5397853","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A symmetrical PMOS OTA (Operational Transconductance Amplifier) is used to build an advanced rail-to-rail amplifier with improved DC-gain and reduced power consumption. By using the adaptive biasing circuit for two differential inputs, a low stand-by current can be achieved, reducing power consumption, while the DC-gain of the proposed OTA is improved by adding a partial feedback loop. Simulation shows that the OTA has a low static power consumption of 57.6 µW and a high FoM of 5.13 [(V/µs.pF)/µW] for a load capacitor of 10pF. The circuit is designed in a STM 90nm CMOS process.
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