{"title":"用于二极管负反馈的小功率低失真放大器的紧凑输出级","authors":"Xiaoliang Chen, J. Xing","doi":"10.1109/ICASID.2010.5551828","DOIUrl":null,"url":null,"abstract":"This paper describes a compact output stage for low-power rail to rail operational amplifier. A negative feedback diode could be used to decrease even harmonic distortion and simplify frequencies compensation. The amplifier is designed to be loaded 20pF capacitive load, and the unity-gain bandwidth is 200 KHz at 65° phase margin. The quiescent current is limit to 45uA when voltage supply is 5V. The THD down to −95dB when signal frequency at 1 KHz. Finally, this circuit has been thoroughly simulated in a standard 0.8um bipolar process.","PeriodicalId":391931,"journal":{"name":"2010 International Conference on Anti-Counterfeiting, Security and Identification","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2010-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"A compact output stage for low-power low-distortion amplifier with diode negative feedback\",\"authors\":\"Xiaoliang Chen, J. Xing\",\"doi\":\"10.1109/ICASID.2010.5551828\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper describes a compact output stage for low-power rail to rail operational amplifier. A negative feedback diode could be used to decrease even harmonic distortion and simplify frequencies compensation. The amplifier is designed to be loaded 20pF capacitive load, and the unity-gain bandwidth is 200 KHz at 65° phase margin. The quiescent current is limit to 45uA when voltage supply is 5V. The THD down to −95dB when signal frequency at 1 KHz. Finally, this circuit has been thoroughly simulated in a standard 0.8um bipolar process.\",\"PeriodicalId\":391931,\"journal\":{\"name\":\"2010 International Conference on Anti-Counterfeiting, Security and Identification\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2010-07-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2010 International Conference on Anti-Counterfeiting, Security and Identification\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICASID.2010.5551828\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2010 International Conference on Anti-Counterfeiting, Security and Identification","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICASID.2010.5551828","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A compact output stage for low-power low-distortion amplifier with diode negative feedback
This paper describes a compact output stage for low-power rail to rail operational amplifier. A negative feedback diode could be used to decrease even harmonic distortion and simplify frequencies compensation. The amplifier is designed to be loaded 20pF capacitive load, and the unity-gain bandwidth is 200 KHz at 65° phase margin. The quiescent current is limit to 45uA when voltage supply is 5V. The THD down to −95dB when signal frequency at 1 KHz. Finally, this circuit has been thoroughly simulated in a standard 0.8um bipolar process.
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