{"title":"2.5 V温度补偿CMOS对数放大器","authors":"K. Koli, K. Halonen","doi":"10.1109/CICC.1997.606589","DOIUrl":null,"url":null,"abstract":"A new temperature compensated low voltage current-mode CMOS logarithmic amplifier is presented. The logarithmic amplifier uses seven cascaded limiting current amplifiers for piece-wise approximation of the logarithmic function and a current peak detector for detecting signal amplitude with a dynamic range of 60 dB. The circuit uses a current reference to stabilize the temperature dependencies down to /spl plusmn/1 dB. The designed amplifier is fabricated with a 1.2 /spl mu/m CMOS process. It operates with down to a 2.2 V single supply voltage and the power consumption is 3 mW with a 2.5 V supply.","PeriodicalId":111737,"journal":{"name":"Proceedings of CICC 97 - Custom Integrated Circuits Conference","volume":"56 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1997-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"21","resultStr":"{\"title\":\"A 2.5 V temperature compensated CMOS logarithmic amplifier\",\"authors\":\"K. Koli, K. Halonen\",\"doi\":\"10.1109/CICC.1997.606589\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A new temperature compensated low voltage current-mode CMOS logarithmic amplifier is presented. The logarithmic amplifier uses seven cascaded limiting current amplifiers for piece-wise approximation of the logarithmic function and a current peak detector for detecting signal amplitude with a dynamic range of 60 dB. The circuit uses a current reference to stabilize the temperature dependencies down to /spl plusmn/1 dB. The designed amplifier is fabricated with a 1.2 /spl mu/m CMOS process. It operates with down to a 2.2 V single supply voltage and the power consumption is 3 mW with a 2.5 V supply.\",\"PeriodicalId\":111737,\"journal\":{\"name\":\"Proceedings of CICC 97 - Custom Integrated Circuits Conference\",\"volume\":\"56 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1997-05-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"21\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of CICC 97 - Custom Integrated Circuits Conference\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/CICC.1997.606589\",\"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 CICC 97 - Custom Integrated Circuits Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CICC.1997.606589","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A 2.5 V temperature compensated CMOS logarithmic amplifier
A new temperature compensated low voltage current-mode CMOS logarithmic amplifier is presented. The logarithmic amplifier uses seven cascaded limiting current amplifiers for piece-wise approximation of the logarithmic function and a current peak detector for detecting signal amplitude with a dynamic range of 60 dB. The circuit uses a current reference to stabilize the temperature dependencies down to /spl plusmn/1 dB. The designed amplifier is fabricated with a 1.2 /spl mu/m CMOS process. It operates with down to a 2.2 V single supply voltage and the power consumption is 3 mW with a 2.5 V supply.
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