Referenced Items are not available for this document.
A compact CMOS magnetic Hall sensor that includes both a Hall plate and readout circuit is proposed. In order to achieve a low-noise and low-power operation, the sensor employs a switched biasing amplifier with a chopper. The prototype has been implemented and fabricated in a high-voltage 0.18 CMOS process and occupies 0.624 mm2. Owing to the switched biasing amplifier, the input-referred noise is reduced from 41 μT√Hz to 25 μT/ √Hz. The entire sensor consumes 4.5 mW with a 3.3 V supply voltage.
Published in:
Sensors Journal, IEEE
(Volume:12
,
Issue:
5
)
Date of Publication: May 2012
- Page(s):
- 1195 - 1196
- ISSN :
- 1530-437X
- INSPEC Accession Number:
- 12650317
- Digital Object Identifier :
- 10.1109/JSEN.2011.2169055
- Product Type:
- Journals & Magazines
- Date of Publication :
- 23 September 2011
- Date of Current Version :
- 09 April 2012
- Issue Date :
- May 2012
- Sponsored by :
- IEEE Sensors Council
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