{"title":"一种高性能CMOS改进放大器","authors":"A. Dadashi, Y. Berg, O. Mirmotahari","doi":"10.1109/ISCE.2016.7797395","DOIUrl":null,"url":null,"abstract":"A new operational transconductance amplifier (OTA) based on the conventional triple folded cascode (TFC) structure is presented. Using the proposed positive feedback method, the dc-gain of the amplifier enhanced significantly. The simulation results for the designed OTA in a typical 0.35μm CMOS technology show more than 20dB dc-gain enhancement while bandwidth, output voltage swing range, and the phase margin characteristics are not affected to a great extent. Higher linearity in the higher output voltage swings is the main advantages of the proposed approach in comparison to the previously reported positive feedback methods.","PeriodicalId":193736,"journal":{"name":"2016 IEEE International Symposium on Consumer Electronics (ISCE)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A high-performance CMOS modified amplifier\",\"authors\":\"A. Dadashi, Y. Berg, O. Mirmotahari\",\"doi\":\"10.1109/ISCE.2016.7797395\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A new operational transconductance amplifier (OTA) based on the conventional triple folded cascode (TFC) structure is presented. Using the proposed positive feedback method, the dc-gain of the amplifier enhanced significantly. The simulation results for the designed OTA in a typical 0.35μm CMOS technology show more than 20dB dc-gain enhancement while bandwidth, output voltage swing range, and the phase margin characteristics are not affected to a great extent. Higher linearity in the higher output voltage swings is the main advantages of the proposed approach in comparison to the previously reported positive feedback methods.\",\"PeriodicalId\":193736,\"journal\":{\"name\":\"2016 IEEE International Symposium on Consumer Electronics (ISCE)\",\"volume\":\"15 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2016 IEEE International Symposium on Consumer Electronics (ISCE)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ISCE.2016.7797395\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 IEEE International Symposium on Consumer Electronics (ISCE)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISCE.2016.7797395","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A new operational transconductance amplifier (OTA) based on the conventional triple folded cascode (TFC) structure is presented. Using the proposed positive feedback method, the dc-gain of the amplifier enhanced significantly. The simulation results for the designed OTA in a typical 0.35μm CMOS technology show more than 20dB dc-gain enhancement while bandwidth, output voltage swing range, and the phase margin characteristics are not affected to a great extent. Higher linearity in the higher output voltage swings is the main advantages of the proposed approach in comparison to the previously reported positive feedback methods.
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