NDLI: A ±5A battery current sensor with ±0.04% gain error from −55°C to +125°C

Content Provider	IEEE Xplore Digital Library
Author	Shalmany, S.H. Makinwa, K. Draxelmayr, D.
Copyright Year	2013
Description	Author affiliation: Electron. Instrum. Lab./DIMES, Delft Univ. of Technol., Delft, Netherlands (Shalmany, S.H.; Makinwa, K.) \|\| Infineon Technol., Villach, Austria (Draxelmayr, D.)
Abstract	This paper describes a battery current sensor (CS) that consists of a calibrated 10mΩ shunt resistor, and a chip comprising a switched-capacitor (SC) ΔΣ ADC and a bandgap reference (BGR). The chip was realized in a standard 0.13μm CMOS process, occupies $1.15mm^{2}$ and draws 55μA from a 1.5V supply. With an off-chip shunt it can digitize bi-directional currents ranging from -5A to +5A with 150μA offset and ±0.04% gain error over the military temperature range (-55°C to +125°C). This performance is achieved by using room temperature trimming, dynamic error correction techniques, a dynamic BGR and a low-leakage sensor front-end.
Sponsorship	IEEE Components, Packaging Manuf. Technol. Soc.
Starting Page	117
Ending Page	120
File Size	631476
Page Count	4
File Format	PDF
ISBN	9781479900398
e-ISBN	9781479900411
DOI	10.1109/IWASI.2013.6576062
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-13
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature measurement Temperature sensors Resistors Temperature distribution Current measurement System-on-chip Batteries
Content Type	Text
Resource Type	Article

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