{"title":"±2A/15A电流传感器，1.4 μA电源电流，±0.35%/0.6%增益误差，−40至85°C，采用模拟温度补偿方案","authors":"R. Zamparette, K. Makinwa","doi":"10.23919/VLSICircuits52068.2021.9492361","DOIUrl":null,"url":null,"abstract":"This paper presents a ±2A fully-integrated current sensor with a 20 mΩ on-chip shunt (resistor). It employs an energy-efficient hybrid sigma-delta ADC with an FIR-DAC and consumes only 1.4 μA, a 3× improvement on the state-of-the-art. A tunable analog non-linear temperature-compensation scheme (TCS) allows ±2A currents to be digitized with 0.35% gain error from −40 to 85°C. With a 3 mΩ PCB shunt, ±15A currents can be digitized with slightly more (0.6%) gain error. In a 0.18 μm CMOS process, the sensor occupies 1.6 mm2.","PeriodicalId":106356,"journal":{"name":"2021 Symposium on VLSI Circuits","volume":"59 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":"{\"title\":\"A ±2A/15A Current Sensor with 1.4 μA Supply Current and ±0.35%/0.6% Gain Error From −40 to 85°C using an Analog Temperature-Compensation Scheme\",\"authors\":\"R. Zamparette, K. Makinwa\",\"doi\":\"10.23919/VLSICircuits52068.2021.9492361\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper presents a ±2A fully-integrated current sensor with a 20 mΩ on-chip shunt (resistor). It employs an energy-efficient hybrid sigma-delta ADC with an FIR-DAC and consumes only 1.4 μA, a 3× improvement on the state-of-the-art. A tunable analog non-linear temperature-compensation scheme (TCS) allows ±2A currents to be digitized with 0.35% gain error from −40 to 85°C. With a 3 mΩ PCB shunt, ±15A currents can be digitized with slightly more (0.6%) gain error. In a 0.18 μm CMOS process, the sensor occupies 1.6 mm2.\",\"PeriodicalId\":106356,\"journal\":{\"name\":\"2021 Symposium on VLSI Circuits\",\"volume\":\"59 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-06-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"8\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2021 Symposium on VLSI Circuits\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.23919/VLSICircuits52068.2021.9492361\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 Symposium on VLSI Circuits","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.23919/VLSICircuits52068.2021.9492361","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A ±2A/15A Current Sensor with 1.4 μA Supply Current and ±0.35%/0.6% Gain Error From −40 to 85°C using an Analog Temperature-Compensation Scheme
This paper presents a ±2A fully-integrated current sensor with a 20 mΩ on-chip shunt (resistor). It employs an energy-efficient hybrid sigma-delta ADC with an FIR-DAC and consumes only 1.4 μA, a 3× improvement on the state-of-the-art. A tunable analog non-linear temperature-compensation scheme (TCS) allows ±2A currents to be digitized with 0.35% gain error from −40 to 85°C. With a 3 mΩ PCB shunt, ±15A currents can be digitized with slightly more (0.6%) gain error. In a 0.18 μm CMOS process, the sensor occupies 1.6 mm2.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
