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Hall Effect Sensor, Switch, 1 mA, SOT-23, 3 Pins, 2.5 V, 3.5 V

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A3212ELHLT-T   Datasheet
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Product Overview

The A3212ELHLT-T is a micropower ultra sensitive hall effect switch with latched digital output in 3 pin SOT2-3 package. Improved stability is made possible through chopper stabilization (dynamic offset cancellation) which reduces residual offset voltage normally caused by device over moulding, temperature dependencies and thermal stress. A 2.5V to 3.5V operation and unique clocking scheme reduce the average operating power requirements to less than 15µW with 2.75V supply. The A3212ELHLT-T includes hall voltage generator, small signal amplifier, chopper stabilization, latch and MOSFET output on a single silicon chip. Advanced BiCMOS processing is used to take advantage of low voltage and low power requirements, component matching, very low input offset errors and small component geometries.
  • Small size, solid state reliability
  • Supply current (IDD(AVG)) of 5.1µA at VDD = 2.75V
  • 0.1% duty cycle
  • Chopping frequency (fc) is 340KHz
  • Superior temperature stability
  • Extremely low switchpoint drift
  • Insensitive to physical stress
  • High ESD protection
  • Easily assembly into applications due to magnetic pole independence
  • Operating ambient temperature range from -40°C to 85°C


Sensing & Instrumentation, Consumer Electronics, Portable Devices


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Technical Documents (3)

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CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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