A multiple-sensitivity Hall sensor featuring a low-cost temperature compensation circuit
| Autor: | Rongshan Wei, Minghua He, Zhuoqu Zeng, Shaoqing Mo |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science business.industry Noise spectral density 020208 electrical & electronic engineering General Engineering Ranging 02 engineering and technology Chip 01 natural sciences Compensation (engineering) CMOS 0103 physical sciences Hardware_INTEGRATEDCIRCUITS 0202 electrical engineering electronic engineering information engineering Optoelectronics Hall effect sensor business Sensitivity (electronics) Voltage |
| Zdroj: | Microelectronics Journal. 113:105067 |
| ISSN: | 0026-2692 |
| DOI: | 10.1016/j.mejo.2021.105067 |
| Popis: | An integrated Hall sensor with a 100-kHz signal-sensing bandwidth suitable for current measurements is proposed in this paper. By combining feedback technology and the bandgap compensation principle, the temperature drift of the proposed Hall sensor is compensated. Α 0.095%/°C temperature drift can be achieved over a temperature ranging from −40 °C to +125 °C. The proposed Hall sensor is implemented using 180-nm CMOS technology. The overall chip size is 3 mm2, with a total current consumption of 7 mA at a 3.3-V supply voltage. Experimental chip measurements demonstrate that the proposed Hall sensor is capable of achieving an equivalent magnetic-field noise density of 114 nT / H z and a linearity error of 1.5%. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect