A ± 12-A High-Side Current Sensor With 25 V Input CM Range and 0.35% Gain Error From −40 °C to 85 °C
More Info
expand_more
expand_more
Abstract
This letter presents the most accurate shunt-based high-side current sensor ever reported. It achieves a 25 V input common-mode range from a single 1.8-V supply by using a beyond-the-rails ADC. A hybrid analog/digital temperature compensation scheme is proposed to simplify the circuit implementation while maintaining the state-of-the-art accuracy. Over a ±12-A current range, the sensor exhibits 0.35% gain error from -40 °C to 85 °C with 3× better power efficiency.
Files
46985373_SSCL_LX_Submitted_4_.... (.pdf)
(.pdf | 0.931 Mb)
Download not available
A_12_A_High_Side_Current_Senso... (.pdf)
(.pdf | 1.76 Mb)
- Embargo expired in 30-03-2022