@inproceedings{0012b525bfef4e2897f0cb2cdd6f5c65,
title = "A Highly Sensitive Magnetic Hall Sensor with a Low Noise Integrated CCIA Interface Circuit",
abstract = "This paper presents a highly sensitive Hall sensor with a high-performance instrument amplifier interface circuit fabricated in a 0.18 μm CMOS process. The Hall sensor is optimized with an equivalent model that achieves a high sensitivity of approximately 25.82 mV/VT under a magnetic field intensity of 60 mT. The instrument amplifier employs a capacitance-coupled instrument amplifier (CCIA), consisting of a chopper for noise reduction, a positive feedback loop for input impedance boosting, and a ripple reduction loop to suppress chopping ripple. Experimental results demonstrate that the CCIA achieves a gain error of less than 0.1% with a noise floor of 223 μV/SHz @ 4 Hz. The integrated testing system is suitable for tactile sensing, biological applications, and micro compasses.",
keywords = "Capacitance coupled instrument amplifier (CCIA), Hall sensor, Interface circuit, Magnetic sensor",
author = "Xinbo Jiang and Kai Qiao and Li, {Xue Jiao} and Xinyuan Zhang and Bo Wang and Huikai Xie and Xiaoyi Wang",
note = "Publisher Copyright: {\textcopyright} 2024 IEEE.; 2024 International Conference on Microelectronics, ICM 2024 ; Conference date: 14-12-2024 Through 17-12-2024",
year = "2024",
doi = "10.1109/ICM63406.2024.10815893",
language = "English",
series = "Proceedings of the International Conference on Microelectronics, ICM",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2024 International Conference on Microelectronics, ICM 2024",
address = "United States",
}