NDLI: Hall cell geartooth sensor with 15 gauss sensitivity

Content Provider	IEEE Xplore Digital Library
Author	Close, J.P. DeVito, L.M. Quinn, D.E.
Copyright Year	1990
Description	Author affiliation: Analog Devices, Wilmington, MA, USA (Close, J.P.; DeVito, L.M.; Quinn, D.E.)
Abstract	A monolithic sensor for detecting time-varying magnetic fields, which combines precision analog circuits with a Hall cell, is described. The device withstands the rigorous environment of an automobile engine ignition control system where it detects teeth on a rotating ferrous wheel. The open-collector digital output responds to field changes of 15+or-1 G over a -55 degrees C to 150 degrees C range. Yield is improved by laser trim of silicon chromium resistors, eliminating the process dependence of Hall cell sensitivity. An AC-coupling scheme using an external 1- mu F capacitor rejects system offsets of several hundred G while allowing full sensitivity with signals as slow as 4 Hz. Other features include controlled startup and shutdown behavior and insensitivity to system noise. The 110-transistor. 10.700-mil/sup 2/ device is packaged in a 4-pin SIP, and operates on a single 5- to 16-V supply.
Starting Page	240
Ending Page	241
File Size	465827
Page Count	2
File Format	PDF
DOI	10.1109/ISSCC.1990.110214
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1990-02-14
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Gaussian processes Magnetic sensors Control systems Sensor phenomena and characterization Analog circuits Automobiles Engines Ignition Teeth Wheels
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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