The A1421, A1422, and A1423 are AC-coupled Hall-effect sensor ICs which include monolithic integrated circuits that switch in response to changing differential magnetic fields created by rotating ring magnets or, when coupled with a magnet, by ferrous targets.
This family of devices also includes an
A1422 Features
* Integrated tracking capacitor
* Used for sensing motion of ring magnet or ferrous targets
* Wide operating temperature range
* Operation with magnetic input signal frequency from 20 Hz to 30 kHz
* EMI/ESD-resistant
* Large effective air gaps
Datasheet Details
A1422, A1421
Allegro MicroSystems
1.15 MB
High precision hall effect ac-coupled differential sensor.
This datasheet PDF includes multiple part numbers: A1422, A1421.
Please refer to the document for exact specifications by model.
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