{"title":"低噪声硅声换能器接口电路的实现","authors":"Yu-Chun Hsu, Wen-Chieh Chou, L. Liao, J. Tsai","doi":"10.1109/VDAT.2007.372762","DOIUrl":null,"url":null,"abstract":"An interface circuit dedicated for silicon acoustic transducer is presented. The circuit includes a transimpedance amplifier for the impedance matching between the acoustic sensor and the negative feedback amplifier along with a negative feedback amplifier with a fixed gain for pre-amplifying the acoustic signal. The input stage of the negative feedback amplifier is specially designed to satisfy sensor's specifications and avoid low frequency noise. The circuit is implemented in a standard CMOS process, and measurements with a conventional silicon microphone are taken. The interface circuit achieves 20dB gain, and a SNR of 51dB with an A-weighted output noise of-119dBV. Results shown in this article validates the circuit designed.","PeriodicalId":137915,"journal":{"name":"2007 International Symposium on VLSI Design, Automation and Test (VLSI-DAT)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2007-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"A Realization of Low Noise Silicon Acoustic Transducer Interface Circuit\",\"authors\":\"Yu-Chun Hsu, Wen-Chieh Chou, L. Liao, J. Tsai\",\"doi\":\"10.1109/VDAT.2007.372762\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"An interface circuit dedicated for silicon acoustic transducer is presented. The circuit includes a transimpedance amplifier for the impedance matching between the acoustic sensor and the negative feedback amplifier along with a negative feedback amplifier with a fixed gain for pre-amplifying the acoustic signal. The input stage of the negative feedback amplifier is specially designed to satisfy sensor's specifications and avoid low frequency noise. The circuit is implemented in a standard CMOS process, and measurements with a conventional silicon microphone are taken. The interface circuit achieves 20dB gain, and a SNR of 51dB with an A-weighted output noise of-119dBV. Results shown in this article validates the circuit designed.\",\"PeriodicalId\":137915,\"journal\":{\"name\":\"2007 International Symposium on VLSI Design, Automation and Test (VLSI-DAT)\",\"volume\":\"47 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2007-04-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2007 International Symposium on VLSI Design, Automation and Test (VLSI-DAT)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/VDAT.2007.372762\",\"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 International Symposium on VLSI Design, Automation and Test (VLSI-DAT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/VDAT.2007.372762","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A Realization of Low Noise Silicon Acoustic Transducer Interface Circuit
An interface circuit dedicated for silicon acoustic transducer is presented. The circuit includes a transimpedance amplifier for the impedance matching between the acoustic sensor and the negative feedback amplifier along with a negative feedback amplifier with a fixed gain for pre-amplifying the acoustic signal. The input stage of the negative feedback amplifier is specially designed to satisfy sensor's specifications and avoid low frequency noise. The circuit is implemented in a standard CMOS process, and measurements with a conventional silicon microphone are taken. The interface circuit achieves 20dB gain, and a SNR of 51dB with an A-weighted output noise of-119dBV. Results shown in this article validates the circuit designed.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
