{"title":"142 dB /spl Delta//spl Sigma/ ADC with a 100 nV LSB in a 3 V CMOS process","authors":"R. Naiknaware, T. Fiez","doi":"10.1109/CICC.2000.852606","DOIUrl":null,"url":null,"abstract":"A /spl Delta//spl Sigma/ ADC designed in a 0.6 /spl mu/m CMOS process uses a reference voltage of only 1.0 V to provide a dynamic range of 142 dB and 132 dB in a bandwidth of 100 and 1000 Hz, respectively. The power optimized ADC implemented using a noise cancellation strategy has a noise floor of -168 dB, equivalent to the noise of a 1 k/spl Omega/ resistor. A reference ADC designed without a noise reduction mechanism has a noise floor of -148 dB. The high resolution converter targeted for sensitive instrumentation such as remote seismic monitoring and biomedical devices consumes 22.8 mW from a single 3.0 V supply.","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":"9","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.2000.852606","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 9
Abstract
A /spl Delta//spl Sigma/ ADC designed in a 0.6 /spl mu/m CMOS process uses a reference voltage of only 1.0 V to provide a dynamic range of 142 dB and 132 dB in a bandwidth of 100 and 1000 Hz, respectively. The power optimized ADC implemented using a noise cancellation strategy has a noise floor of -168 dB, equivalent to the noise of a 1 k/spl Omega/ resistor. A reference ADC designed without a noise reduction mechanism has a noise floor of -148 dB. The high resolution converter targeted for sensitive instrumentation such as remote seismic monitoring and biomedical devices consumes 22.8 mW from a single 3.0 V supply.