{"title":"9.1 mW感应位移-数字转换器,1.85 nm分辨率","authors":"V. Chaturvedi, J. Vogel, K. Makinwa, S. Nihtianov","doi":"10.23919/VLSIC.2017.8008556","DOIUrl":null,"url":null,"abstract":"A displacement-to-digital converter (DDC) based on inductive (eddy-current) sensor is presented. The sensor is embedded in a self-oscillating front-end, whose 145MHz output is then digitized by a ratiometric ΔΣ ADC. Over a 10μm range, the DDC achieves 1.85nm resolution (1.02 pH), in a 2kHz bandwidth. It draws 9.1mW from a 1.8 V supply making it the most energy-efficient ECS interface ever reported.","PeriodicalId":176340,"journal":{"name":"2017 Symposium on VLSI Circuits","volume":"50 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":"{\"title\":\"A 9.1 mW inductive displacement-to-digital converter with 1.85 nm resolution\",\"authors\":\"V. Chaturvedi, J. Vogel, K. Makinwa, S. Nihtianov\",\"doi\":\"10.23919/VLSIC.2017.8008556\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A displacement-to-digital converter (DDC) based on inductive (eddy-current) sensor is presented. The sensor is embedded in a self-oscillating front-end, whose 145MHz output is then digitized by a ratiometric ΔΣ ADC. Over a 10μm range, the DDC achieves 1.85nm resolution (1.02 pH), in a 2kHz bandwidth. It draws 9.1mW from a 1.8 V supply making it the most energy-efficient ECS interface ever reported.\",\"PeriodicalId\":176340,\"journal\":{\"name\":\"2017 Symposium on VLSI Circuits\",\"volume\":\"50 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2017-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"6\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2017 Symposium on VLSI Circuits\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.23919/VLSIC.2017.8008556\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2017 Symposium on VLSI Circuits","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.23919/VLSIC.2017.8008556","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A 9.1 mW inductive displacement-to-digital converter with 1.85 nm resolution
A displacement-to-digital converter (DDC) based on inductive (eddy-current) sensor is presented. The sensor is embedded in a self-oscillating front-end, whose 145MHz output is then digitized by a ratiometric ΔΣ ADC. Over a 10μm range, the DDC achieves 1.85nm resolution (1.02 pH), in a 2kHz bandwidth. It draws 9.1mW from a 1.8 V supply making it the most energy-efficient ECS interface ever reported.