{"title":"A sample-and-hold circuit with very low gain error for time interleaving applications","authors":"F. Centurelli, A. Simonetti, A. Trifiletti","doi":"10.1109/ECCTD.2007.4529631","DOIUrl":null,"url":null,"abstract":"A high-performance sample-and-hold (S/H) front end is proposed. In the double-buffered S/H circuit, the standard voltage follower based on a high-gain two-stage opamp is replaced with a couple of low gain amplifiers in feedback mode. Simulation results show that the proposed active-feedback voltage follower allows a very low gain error with low sensitivity to circuit mismatches and a limited distortion penalty. This makes it suitable to be used in time interleaving applications with distributed sampling.","PeriodicalId":445822,"journal":{"name":"2007 18th European Conference on Circuit Theory and Design","volume":"31 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2007-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2007 18th European Conference on Circuit Theory and Design","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ECCTD.2007.4529631","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
A high-performance sample-and-hold (S/H) front end is proposed. In the double-buffered S/H circuit, the standard voltage follower based on a high-gain two-stage opamp is replaced with a couple of low gain amplifiers in feedback mode. Simulation results show that the proposed active-feedback voltage follower allows a very low gain error with low sensitivity to circuit mismatches and a limited distortion penalty. This makes it suitable to be used in time interleaving applications with distributed sampling.
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