{"title":"Implementation of GaAs E/D HEMT analog components for oversampling analog/digital conversion","authors":"S. Feng, J. Sauerer, D. Seitzer","doi":"10.1109/GAAS.1994.636973","DOIUrl":null,"url":null,"abstract":"The paper presents design considerations and implementation of analog components, including an operational amplifier, latched comparator, 1 bit D/A converter and second-order modulator, for a fully differential delta-sigma modulation oversampling A/D converter in a 0.5 /spl mu/m GaAs E/D HEMT technology. On-wafer measurements demonstrate that the second-order modulator achieves a 60 dB dynamic range at a Nyquist conversion rate of 5.0 MHz with a sampling frequency of 500 MHz.","PeriodicalId":328819,"journal":{"name":"Proceedings of 1994 IEEE GaAs IC Symposium","volume":"41 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1994-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of 1994 IEEE GaAs IC Symposium","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/GAAS.1994.636973","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6
Abstract
The paper presents design considerations and implementation of analog components, including an operational amplifier, latched comparator, 1 bit D/A converter and second-order modulator, for a fully differential delta-sigma modulation oversampling A/D converter in a 0.5 /spl mu/m GaAs E/D HEMT technology. On-wafer measurements demonstrate that the second-order modulator achieves a 60 dB dynamic range at a Nyquist conversion rate of 5.0 MHz with a sampling frequency of 500 MHz.
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