{"title":"全数字，0.3V, 270 nW电容式传感器接口，无外部参考","authors":"Hans Danneels, Kristof Coddens, G. Gielen","doi":"10.1109/ESSCIRC.2011.6044963","DOIUrl":null,"url":null,"abstract":"This paper presents a fully-digital capacitive sensor interface. By directly transforming the sensor value instead of using an intermediate step in the voltage domain, the architecture can cope with very low signal swings. An implementation for barometric pressure sensing with a supply voltage of 0.3 V demonstrates the benefits. With a power consumption of only 270 nW and an acquisition time of 1 ms, an ENOB of 6.1 is obtained, resulting in a FOM of 2.1 pJ/conv for the entire interface. This is at least an order of magnitude better than current state-of-the-art implementations.","PeriodicalId":239979,"journal":{"name":"2011 Proceedings of the ESSCIRC (ESSCIRC)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2011-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"85","resultStr":"{\"title\":\"A fully-digital, 0.3V, 270 nW capacitive sensor interface without external references\",\"authors\":\"Hans Danneels, Kristof Coddens, G. Gielen\",\"doi\":\"10.1109/ESSCIRC.2011.6044963\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper presents a fully-digital capacitive sensor interface. By directly transforming the sensor value instead of using an intermediate step in the voltage domain, the architecture can cope with very low signal swings. An implementation for barometric pressure sensing with a supply voltage of 0.3 V demonstrates the benefits. With a power consumption of only 270 nW and an acquisition time of 1 ms, an ENOB of 6.1 is obtained, resulting in a FOM of 2.1 pJ/conv for the entire interface. This is at least an order of magnitude better than current state-of-the-art implementations.\",\"PeriodicalId\":239979,\"journal\":{\"name\":\"2011 Proceedings of the ESSCIRC (ESSCIRC)\",\"volume\":\"99 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2011-10-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"85\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2011 Proceedings of the ESSCIRC (ESSCIRC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ESSCIRC.2011.6044963\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 Proceedings of the ESSCIRC (ESSCIRC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ESSCIRC.2011.6044963","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A fully-digital, 0.3V, 270 nW capacitive sensor interface without external references
This paper presents a fully-digital capacitive sensor interface. By directly transforming the sensor value instead of using an intermediate step in the voltage domain, the architecture can cope with very low signal swings. An implementation for barometric pressure sensing with a supply voltage of 0.3 V demonstrates the benefits. With a power consumption of only 270 nW and an acquisition time of 1 ms, an ENOB of 6.1 is obtained, resulting in a FOM of 2.1 pJ/conv for the entire interface. This is at least an order of magnitude better than current state-of-the-art implementations.
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