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.
Original language | English |
---|---|
Title of host publication | 2021 Symposium on VLSI Circuits |
Place of Publication | Piscataway |
Publisher | IEEE |
Pages | 1-2 |
Number of pages | 2 |
ISBN (Electronic) | 978-4-86348-780-2 |
ISBN (Print) | 978-1-6654-4766-9 |
DOIs | |
Publication status | Published - 2021 |
Event | 2021 Symposia on VLSI Technology and VLSI Circuits - Virtual at Kyoto, Japan Duration: 13 Jun 2021 → 19 Jun 2021 |
Conference
Conference | 2021 Symposia on VLSI Technology and VLSI Circuits |
---|---|
Country/Territory | Japan |
City | Virtual at Kyoto |
Period | 13/06/21 → 19/06/21 |
Bibliographical note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-careOtherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.