T. Reimann, F. Krummenacher, B. Willing, P. Muralt, M. Declercq
{"title":"一种用于皮安培薄膜热释电阵列探测器的CMOS读出电路","authors":"T. Reimann, F. Krummenacher, B. Willing, P. Muralt, M. Declercq","doi":"10.1109/CICC.2000.852694","DOIUrl":null,"url":null,"abstract":"A 16-channel readout circuit able to process low frequency modulated (1-10 hertz) current signals in the pico-ampere range from a thin film pyroelectric array detector has been integrated in a 0.7 /spl mu/m CMOS technology. Each channel consists of a high gain (14 G/spl Omega/) transimpedance preamplifier having an input-referred current noise spectral density of 1.5 fA//spl radic/Hz at 10 Hz. A multiplier for demodulating the signal follows the preamplifier (chopper frequency fixed at 10 Hz). Finally, the signal is integrated over 8 periods before being converted by a 12-bit A/D converter. The multiplication, the integration and the A/D conversion are implemented within a single block using a first-order switched-capacitor incremental A/D converter architecture.","PeriodicalId":20702,"journal":{"name":"Proceedings of the IEEE 2000 Custom Integrated Circuits Conference (Cat. No.00CH37044)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2000-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A CMOS readout circuit for pico-ampere thin film pyroelectric array detectors\",\"authors\":\"T. Reimann, F. Krummenacher, B. Willing, P. Muralt, M. Declercq\",\"doi\":\"10.1109/CICC.2000.852694\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A 16-channel readout circuit able to process low frequency modulated (1-10 hertz) current signals in the pico-ampere range from a thin film pyroelectric array detector has been integrated in a 0.7 /spl mu/m CMOS technology. Each channel consists of a high gain (14 G/spl Omega/) transimpedance preamplifier having an input-referred current noise spectral density of 1.5 fA//spl radic/Hz at 10 Hz. A multiplier for demodulating the signal follows the preamplifier (chopper frequency fixed at 10 Hz). Finally, the signal is integrated over 8 periods before being converted by a 12-bit A/D converter. The multiplication, the integration and the A/D conversion are implemented within a single block using a first-order switched-capacitor incremental A/D converter architecture.\",\"PeriodicalId\":20702,\"journal\":{\"name\":\"Proceedings of the IEEE 2000 Custom Integrated Circuits Conference (Cat. No.00CH37044)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2000-05-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of the IEEE 2000 Custom Integrated Circuits Conference (Cat. No.00CH37044)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/CICC.2000.852694\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the IEEE 2000 Custom Integrated Circuits Conference (Cat. No.00CH37044)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CICC.2000.852694","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A CMOS readout circuit for pico-ampere thin film pyroelectric array detectors
A 16-channel readout circuit able to process low frequency modulated (1-10 hertz) current signals in the pico-ampere range from a thin film pyroelectric array detector has been integrated in a 0.7 /spl mu/m CMOS technology. Each channel consists of a high gain (14 G/spl Omega/) transimpedance preamplifier having an input-referred current noise spectral density of 1.5 fA//spl radic/Hz at 10 Hz. A multiplier for demodulating the signal follows the preamplifier (chopper frequency fixed at 10 Hz). Finally, the signal is integrated over 8 periods before being converted by a 12-bit A/D converter. The multiplication, the integration and the A/D conversion are implemented within a single block using a first-order switched-capacitor incremental A/D converter architecture.
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