{"title":"连续时间σ - δ调制器的鲁棒NTF设计","authors":"M. Mirzaei, H. Shamsi","doi":"10.1109/ICM.2009.5418581","DOIUrl":null,"url":null,"abstract":"In this paper, a novel empirical-analytical study is performed on the design of low power and robust continuous time Sigma-Delta modulators. The proposed method makes the modulators more stable against the excess loop delay of the feedback loop. Besides, it enforces easy constraints on op-amps of the modulator so that we can realize the op-amps with a unity gain bandwidth identical to the sampling frequency of the modulator. In order to design a more stable Noise Transfer Function (NTF), this method employs both the phase margin (PM) and gain margin (GM) stability criteria.","PeriodicalId":391668,"journal":{"name":"2009 International Conference on Microelectronics - ICM","volume":"80 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Robust NTF design for continuous time Sigma-Delta modulators\",\"authors\":\"M. Mirzaei, H. Shamsi\",\"doi\":\"10.1109/ICM.2009.5418581\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, a novel empirical-analytical study is performed on the design of low power and robust continuous time Sigma-Delta modulators. The proposed method makes the modulators more stable against the excess loop delay of the feedback loop. Besides, it enforces easy constraints on op-amps of the modulator so that we can realize the op-amps with a unity gain bandwidth identical to the sampling frequency of the modulator. In order to design a more stable Noise Transfer Function (NTF), this method employs both the phase margin (PM) and gain margin (GM) stability criteria.\",\"PeriodicalId\":391668,\"journal\":{\"name\":\"2009 International Conference on Microelectronics - ICM\",\"volume\":\"80 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2009-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2009 International Conference on Microelectronics - ICM\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICM.2009.5418581\",\"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 International Conference on Microelectronics - ICM","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICM.2009.5418581","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Robust NTF design for continuous time Sigma-Delta modulators
In this paper, a novel empirical-analytical study is performed on the design of low power and robust continuous time Sigma-Delta modulators. The proposed method makes the modulators more stable against the excess loop delay of the feedback loop. Besides, it enforces easy constraints on op-amps of the modulator so that we can realize the op-amps with a unity gain bandwidth identical to the sampling frequency of the modulator. In order to design a more stable Noise Transfer Function (NTF), this method employs both the phase margin (PM) and gain margin (GM) stability criteria.