{"title":"具有可编程比较窗口的0.8V 8位低功耗异步平交ADC","authors":"Yongjia Li, Duan Zhao, W. Serdijn","doi":"10.1109/BioCAS.2013.6679658","DOIUrl":null,"url":null,"abstract":"We propose a low-power asynchronous level-crossing analog-to-digital converter (LC-ADC) for use in a biomedical readout system. A comparator with programmable offset and a low-power single-bit digital-to-analog converter (DAC) are proposed to separate the comparison windows and fix the common-mode voltage of the comparator. Implemented in a 0.18 μm CMOS technology, the proposed LC-ADC uses a chip area of 220×230 μm2. Operating from a supply voltage of 0.8 V, the ADC input range can exceed the power supply voltage. It consumes 0.32 - 0.84 μW from 5 Hz to 5.1 kHz with an ENOB of 7.8.","PeriodicalId":344317,"journal":{"name":"2013 IEEE Biomedical Circuits and Systems Conference (BioCAS)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2013-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"10","resultStr":"{\"title\":\"A 0.8V 8-bit low-power asynchronous level-crossing ADC with programmable comparison windows\",\"authors\":\"Yongjia Li, Duan Zhao, W. Serdijn\",\"doi\":\"10.1109/BioCAS.2013.6679658\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We propose a low-power asynchronous level-crossing analog-to-digital converter (LC-ADC) for use in a biomedical readout system. A comparator with programmable offset and a low-power single-bit digital-to-analog converter (DAC) are proposed to separate the comparison windows and fix the common-mode voltage of the comparator. Implemented in a 0.18 μm CMOS technology, the proposed LC-ADC uses a chip area of 220×230 μm2. Operating from a supply voltage of 0.8 V, the ADC input range can exceed the power supply voltage. It consumes 0.32 - 0.84 μW from 5 Hz to 5.1 kHz with an ENOB of 7.8.\",\"PeriodicalId\":344317,\"journal\":{\"name\":\"2013 IEEE Biomedical Circuits and Systems Conference (BioCAS)\",\"volume\":\"40 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2013-12-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"10\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2013 IEEE Biomedical Circuits and Systems Conference (BioCAS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/BioCAS.2013.6679658\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2013 IEEE Biomedical Circuits and Systems Conference (BioCAS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/BioCAS.2013.6679658","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A 0.8V 8-bit low-power asynchronous level-crossing ADC with programmable comparison windows
We propose a low-power asynchronous level-crossing analog-to-digital converter (LC-ADC) for use in a biomedical readout system. A comparator with programmable offset and a low-power single-bit digital-to-analog converter (DAC) are proposed to separate the comparison windows and fix the common-mode voltage of the comparator. Implemented in a 0.18 μm CMOS technology, the proposed LC-ADC uses a chip area of 220×230 μm2. Operating from a supply voltage of 0.8 V, the ADC input range can exceed the power supply voltage. It consumes 0.32 - 0.84 μW from 5 Hz to 5.1 kHz with an ENOB of 7.8.
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