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Blog
Wednesday, August 15, 2007
Allegro A3423: Hall-effect sensor indicates speed and direction of a target
Aug 15 2007 12:45PM | Permalink |Comments (1) |
Aiming at speed- and direction-sensing applications using encoder-ring-magnet targets, the dual-channel A3423 Hall-effect sensor provides output signals indicating the speed and direction of the target. The sensors’ Hall elements are photolithographically aligned to 1 micron and are spaced 1.63 mm apart. The temperature-stable device targets use in harsh automotive and industrial environments. Low-drift amplifiers provide symmetry between the switches to maintain signal quadrature. An on-chip regulator allows the use of the device over a 3.8 to 24V operating-voltage range. The A3423 Hall-effect sensor costs $1.78 (1000).
Allegro, www.allegromicro.com
Related entries in: Components, Hardware, Interconnect |
Reader Comments
at 10/20/2009 5:17:27 AM, radhoo said:
Here's a similar device: the hall sensor A1302.
I've prepared a tutorial on how to use this hall sensor with a microcontroller (atmega8): www.pocketmagic.net/?p=936
hope this helps!
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