{"title":"具有任意极性和零点数的运算放大器时间和相位裕度的符号公式","authors":"A. Gheorghe, F. Constantinescu, M. Marin","doi":"10.1109/ET.2018.8549654","DOIUrl":null,"url":null,"abstract":"Settling time (ST) and phase margin (PM) of an op-amp with an arbitrary number of poles/zeros are estimated using the approximate pole/zero symbolic expressions. The method is illustrated by finding the symbolic expressions of ST and PM for a fully differential two-stage op-amp in terms of load, feedback, and Miller capacities. In this case the closed loop voltage gain has 8 poles and 7 zeros.","PeriodicalId":374877,"journal":{"name":"2018 IEEE XXVII International Scientific Conference Electronics - ET","volume":"44 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Symbolic Formulas for Settling Time and Phase Margin of Op-Amp with Arbitrary Number of Poles and Zeros\",\"authors\":\"A. Gheorghe, F. Constantinescu, M. Marin\",\"doi\":\"10.1109/ET.2018.8549654\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Settling time (ST) and phase margin (PM) of an op-amp with an arbitrary number of poles/zeros are estimated using the approximate pole/zero symbolic expressions. The method is illustrated by finding the symbolic expressions of ST and PM for a fully differential two-stage op-amp in terms of load, feedback, and Miller capacities. In this case the closed loop voltage gain has 8 poles and 7 zeros.\",\"PeriodicalId\":374877,\"journal\":{\"name\":\"2018 IEEE XXVII International Scientific Conference Electronics - ET\",\"volume\":\"44 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2018 IEEE XXVII International Scientific Conference Electronics - ET\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ET.2018.8549654\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 IEEE XXVII International Scientific Conference Electronics - ET","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ET.2018.8549654","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Symbolic Formulas for Settling Time and Phase Margin of Op-Amp with Arbitrary Number of Poles and Zeros
Settling time (ST) and phase margin (PM) of an op-amp with an arbitrary number of poles/zeros are estimated using the approximate pole/zero symbolic expressions. The method is illustrated by finding the symbolic expressions of ST and PM for a fully differential two-stage op-amp in terms of load, feedback, and Miller capacities. In this case the closed loop voltage gain has 8 poles and 7 zeros.
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