{"title":"Integrated capacitive-sensor interface based on a multi-slope modulator","authors":"S. Nihtianov, Yao Cheng","doi":"10.1109/ICIT.2013.6505802","DOIUrl":null,"url":null,"abstract":"This paper presents an energy-efficient capacitive sensor interface based on a multi-slope analog-to-digital converter (ADC). The interface utilizes precision resistor and time as references. By using a multi-slope analog-to-digital converter, the conversion time of this multi-slope modulator is reduced down to 50us. The counter works as a sinc filter to reduce the noise, which helps to achieve a resolution of 14.5 bits for 250 Hz signal bandwidth.","PeriodicalId":192784,"journal":{"name":"2013 IEEE International Conference on Industrial Technology (ICIT)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2013-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2013 IEEE International Conference on Industrial Technology (ICIT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICIT.2013.6505802","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
This paper presents an energy-efficient capacitive sensor interface based on a multi-slope analog-to-digital converter (ADC). The interface utilizes precision resistor and time as references. By using a multi-slope analog-to-digital converter, the conversion time of this multi-slope modulator is reduced down to 50us. The counter works as a sinc filter to reduce the noise, which helps to achieve a resolution of 14.5 bits for 250 Hz signal bandwidth.
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