{"title":"新型直流输入ΣΔ电容-数字转换器，用于生物传感器应用","authors":"G. Nabovati, E. Ghafar-Zadeh, M. Sawan","doi":"10.1109/NEWCAS.2014.6933992","DOIUrl":null,"url":null,"abstract":"In this paper we present a novel DC-input ΣΔ modulator architecture for CMOS capacitive sensors based on charge to digital conversion. This new core-CBCM ΣΔ modulator is designed in Cadence software using TSMC 0.35 μm technology, and based on circuit parameters a behavioral model in Matlab is developed. By using behavioral time-domain simulations in Matlab, optimized values of parameters in ΣΔ modulator are determined to improve the overall circuit performance. The simulation results show that the proposed ΣΔ modulator has the dynamic range of 100-110 fF and can reach to the resolution of 10 bits.","PeriodicalId":216848,"journal":{"name":"2014 IEEE 12th International New Circuits and Systems Conference (NEWCAS)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2014-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Novel DC-input ΣΔ capacitance-to-digital convertor for biosensor applications\",\"authors\":\"G. Nabovati, E. Ghafar-Zadeh, M. Sawan\",\"doi\":\"10.1109/NEWCAS.2014.6933992\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper we present a novel DC-input ΣΔ modulator architecture for CMOS capacitive sensors based on charge to digital conversion. This new core-CBCM ΣΔ modulator is designed in Cadence software using TSMC 0.35 μm technology, and based on circuit parameters a behavioral model in Matlab is developed. By using behavioral time-domain simulations in Matlab, optimized values of parameters in ΣΔ modulator are determined to improve the overall circuit performance. The simulation results show that the proposed ΣΔ modulator has the dynamic range of 100-110 fF and can reach to the resolution of 10 bits.\",\"PeriodicalId\":216848,\"journal\":{\"name\":\"2014 IEEE 12th International New Circuits and Systems Conference (NEWCAS)\",\"volume\":\"23 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2014-06-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2014 IEEE 12th International New Circuits and Systems Conference (NEWCAS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/NEWCAS.2014.6933992\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2014 IEEE 12th International New Circuits and Systems Conference (NEWCAS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NEWCAS.2014.6933992","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Novel DC-input ΣΔ capacitance-to-digital convertor for biosensor applications
In this paper we present a novel DC-input ΣΔ modulator architecture for CMOS capacitive sensors based on charge to digital conversion. This new core-CBCM ΣΔ modulator is designed in Cadence software using TSMC 0.35 μm technology, and based on circuit parameters a behavioral model in Matlab is developed. By using behavioral time-domain simulations in Matlab, optimized values of parameters in ΣΔ modulator are determined to improve the overall circuit performance. The simulation results show that the proposed ΣΔ modulator has the dynamic range of 100-110 fF and can reach to the resolution of 10 bits.
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