OH9253 Omnipolar Micropower Hall Switch

CMOS Omnipolar High Sensitivity Hall Switch, 2.5 to 6V, No Sleep

Supply voltage

Operating point (Bop)

Release point (BRP)

Operating temperature

Average supply current

Output current



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OH9253 Omnipolar Micropower Hall Switch datasheet

Product description

OH9253 Hall-effect sensor is a temperature stable, stress-resistant switch,including the following items on a single silicon chip: voltage regulator, Hall voltage generator, small-signal amplifier, chopper stabilization, Schmitt trigger, open-drain output. Advanced CMOS wafer fabrication processing is used to take advantage of low-voltage requirements, component matching, very low input-offset errors, and small component geometries.


  • CMOS Hall IC Technology
  • Solid-State Reliability much better than a reed switch
  • Omnipolar output switches with the absolute value of North or South pole from the magnet
  • Low power consumption (2.6mA)
  • High Sensitivity for reed switch replacement
  • ESD HBM ±4KV Min
  • COST competitive


  • Solid-state switch
  • Lid close sensor for power supply devices
  • Magnet proximity sensor for reed switch replacement
  • Safety Key Revolution counter
  • Speed sensor
  • Position Sensor
  • Rotation Sensor

Magnetic-electrical Transfer Characteristics


Absolute Maximum Ratings (TA=25℃)



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