High Precision Hall Effect AC-Coupled Differential Sensor
Description
A1421, A1422, and A1423
High Precision Hall Effect AC-Coupled Differential Sensor IC with Integrated Filter Capacitor
Features and Benefits
• 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 • 4.
0 to 26.
5 V supply operating range • Output compatible with CMOS logic families • Reverse battery protection • Resistant to mechanical and thermal stress • Accurate true zero crossing switchpoint (A1421 only) • High vibration immunity, in running mode (A1423 only)
Package: 4 pin SIP (suffix K)
Description
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 dev...
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