{"title":"基于c类逆变器的低功耗Sigma-Delta调制器","authors":"Youngcheol Chae, G. Han","doi":"10.1109/VLSIC.2007.4342734","DOIUrl":null,"url":null,"abstract":"In switched capacitor sigma-delta (SigmaDelta) analog-to-digital converters (ADCs), an operational transconductance amplifier (OTA) is the main building block and consumes most of power. This paper proposes that the OTAs can be replaced with class-C inverters for low-power consumption without sacrificing the performance. A second order SigmaDelta modulator using class-C inverter technique is fabricated with a 0.35-mum CMOS process, occupies 3024 mum2 , dissipates 5.6-muW under 1.2 V supply-voltage, and provides 63-dB/72-dB/76-dB SNDR/SNR/DR over 8-kHz signal bandwidth.","PeriodicalId":261092,"journal":{"name":"2007 IEEE Symposium on VLSI Circuits","volume":"43 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2007-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"37","resultStr":"{\"title\":\"A Low Power Sigma-Delta Modulator Using Class-C Inverter\",\"authors\":\"Youngcheol Chae, G. Han\",\"doi\":\"10.1109/VLSIC.2007.4342734\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In switched capacitor sigma-delta (SigmaDelta) analog-to-digital converters (ADCs), an operational transconductance amplifier (OTA) is the main building block and consumes most of power. This paper proposes that the OTAs can be replaced with class-C inverters for low-power consumption without sacrificing the performance. A second order SigmaDelta modulator using class-C inverter technique is fabricated with a 0.35-mum CMOS process, occupies 3024 mum2 , dissipates 5.6-muW under 1.2 V supply-voltage, and provides 63-dB/72-dB/76-dB SNDR/SNR/DR over 8-kHz signal bandwidth.\",\"PeriodicalId\":261092,\"journal\":{\"name\":\"2007 IEEE Symposium on VLSI Circuits\",\"volume\":\"43 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2007-06-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"37\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2007 IEEE Symposium on VLSI Circuits\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/VLSIC.2007.4342734\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2007 IEEE Symposium on VLSI Circuits","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/VLSIC.2007.4342734","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A Low Power Sigma-Delta Modulator Using Class-C Inverter
In switched capacitor sigma-delta (SigmaDelta) analog-to-digital converters (ADCs), an operational transconductance amplifier (OTA) is the main building block and consumes most of power. This paper proposes that the OTAs can be replaced with class-C inverters for low-power consumption without sacrificing the performance. A second order SigmaDelta modulator using class-C inverter technique is fabricated with a 0.35-mum CMOS process, occupies 3024 mum2 , dissipates 5.6-muW under 1.2 V supply-voltage, and provides 63-dB/72-dB/76-dB SNDR/SNR/DR over 8-kHz signal bandwidth.
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