{"title":"±36A集成电流传感系统，增益误差为0.3%，从−55°C到+85°C的偏移量为400µA","authors":"S. H. Shalmany, D. Draxelmayr, K. Makinwa","doi":"10.1109/VLSIC.2016.7573493","DOIUrl":null,"url":null,"abstract":"This paper presents an integrated shunt-based current-sensing system (CSS) capable of handling ±36A currents, the highest ever reported. It also achieves 0.3% gain error and 400μA offset, which is significantly better than the state-of-the-art. The heart of the system is a robust 260μΩ shunt made from the lead-frame of a standard HVQFN plastic package. The resulting voltage drop is then digitized by a ΔΣ ADC and a bandgap reference (BGR). At the expense of current handling capability, a ±5A version of the CSS uses a 10mΩ on-chip metal shunt to achieve just 4μA offset. Both designs were realized in a standard 0.13μm CMOS process.","PeriodicalId":6512,"journal":{"name":"2016 IEEE Symposium on VLSI Circuits (VLSI-Circuits)","volume":"28 1","pages":"1-2"},"PeriodicalIF":0.0000,"publicationDate":"2016-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"22","resultStr":"{\"title\":\"A ± 36A integrated current-sensing system with 0.3% gain error and 400µA offset from −55°C to +85°C\",\"authors\":\"S. H. Shalmany, D. Draxelmayr, K. Makinwa\",\"doi\":\"10.1109/VLSIC.2016.7573493\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper presents an integrated shunt-based current-sensing system (CSS) capable of handling ±36A currents, the highest ever reported. It also achieves 0.3% gain error and 400μA offset, which is significantly better than the state-of-the-art. The heart of the system is a robust 260μΩ shunt made from the lead-frame of a standard HVQFN plastic package. The resulting voltage drop is then digitized by a ΔΣ ADC and a bandgap reference (BGR). At the expense of current handling capability, a ±5A version of the CSS uses a 10mΩ on-chip metal shunt to achieve just 4μA offset. Both designs were realized in a standard 0.13μm CMOS process.\",\"PeriodicalId\":6512,\"journal\":{\"name\":\"2016 IEEE Symposium on VLSI Circuits (VLSI-Circuits)\",\"volume\":\"28 1\",\"pages\":\"1-2\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-06-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"22\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2016 IEEE Symposium on VLSI Circuits (VLSI-Circuits)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/VLSIC.2016.7573493\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 IEEE Symposium on VLSI Circuits (VLSI-Circuits)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/VLSIC.2016.7573493","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A ± 36A integrated current-sensing system with 0.3% gain error and 400µA offset from −55°C to +85°C
This paper presents an integrated shunt-based current-sensing system (CSS) capable of handling ±36A currents, the highest ever reported. It also achieves 0.3% gain error and 400μA offset, which is significantly better than the state-of-the-art. The heart of the system is a robust 260μΩ shunt made from the lead-frame of a standard HVQFN plastic package. The resulting voltage drop is then digitized by a ΔΣ ADC and a bandgap reference (BGR). At the expense of current handling capability, a ±5A version of the CSS uses a 10mΩ on-chip metal shunt to achieve just 4μA offset. Both designs were realized in a standard 0.13μm CMOS process.
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