{"title":"高效率的AB类CMOS运算放大器","authors":"L. Callewaert, W. Sansen","doi":"10.1109/ESSCIRC.1989.5468139","DOIUrl":null,"url":null,"abstract":"A new, simple, yet very current efficient class AB amplifier principle is presented. When used as a differential input stage it features a settling time which is independent of the input signal, and a current efficiency superior to that of any conventional OTA. The same class AB stage can also be used as an output stage with a rail to rail output voltage swing, and a large drive capability. An amplifier with both input and output stages based on this new principle is presented. This amplifier features a gainbandwidth of 310 kHz and a settling time to 0.1% of 2.4 ¿s. It can drive a resistive load of 2500 Ohm in parallel with a capacitive load of 400 pF when operated on a 2.5V/-2.5V power supply, with a quiescent power consumption of only 285 ¿W.","PeriodicalId":187183,"journal":{"name":"ESSCIRC '89: Proceedings of the 15th European Solid-State Circuits Conference","volume":"57 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1989-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Class AB CMOS Operational Amplifiers with Very High Efficiency\",\"authors\":\"L. Callewaert, W. Sansen\",\"doi\":\"10.1109/ESSCIRC.1989.5468139\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A new, simple, yet very current efficient class AB amplifier principle is presented. When used as a differential input stage it features a settling time which is independent of the input signal, and a current efficiency superior to that of any conventional OTA. The same class AB stage can also be used as an output stage with a rail to rail output voltage swing, and a large drive capability. An amplifier with both input and output stages based on this new principle is presented. This amplifier features a gainbandwidth of 310 kHz and a settling time to 0.1% of 2.4 ¿s. It can drive a resistive load of 2500 Ohm in parallel with a capacitive load of 400 pF when operated on a 2.5V/-2.5V power supply, with a quiescent power consumption of only 285 ¿W.\",\"PeriodicalId\":187183,\"journal\":{\"name\":\"ESSCIRC '89: Proceedings of the 15th European Solid-State Circuits Conference\",\"volume\":\"57 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1989-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ESSCIRC '89: Proceedings of the 15th European Solid-State Circuits Conference\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ESSCIRC.1989.5468139\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ESSCIRC '89: Proceedings of the 15th European Solid-State Circuits Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ESSCIRC.1989.5468139","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Class AB CMOS Operational Amplifiers with Very High Efficiency
A new, simple, yet very current efficient class AB amplifier principle is presented. When used as a differential input stage it features a settling time which is independent of the input signal, and a current efficiency superior to that of any conventional OTA. The same class AB stage can also be used as an output stage with a rail to rail output voltage swing, and a large drive capability. An amplifier with both input and output stages based on this new principle is presented. This amplifier features a gainbandwidth of 310 kHz and a settling time to 0.1% of 2.4 ¿s. It can drive a resistive load of 2500 Ohm in parallel with a capacitive load of 400 pF when operated on a 2.5V/-2.5V power supply, with a quiescent power consumption of only 285 ¿W.
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