'stabilized' related articles 1

  1. 2008/06/09 A3340 - Chopper-Stabilized, Precision Hall-Effect Switch

Description
The A3340 Hall effect switch is an extremely temperature-stable and stress-resistant sensor especially suited for operation over extended temperature ranges up to 150°C.
Superior high-temperature performance is made possible through dynamic offset cancellation, which reduces the residual offset voltage normally caused by device overmolding, temperature
dependencies, and thermal stress.
The device includes on a single silicon chip a voltage regulator, Hall-voltage generator, small-signal amplifier, chopper stabilization, Schmitt trigger, and a short-circuit protected open-collector output to sink up to 25 mA. A south pole of sufficient strength will turn the output off.
An on-board regulator permits operation with supply voltages of 4.2 to 24 volts.
Two package styles provide a magnetically optimized package for most applications.
Suffix LH is an SOT23W surface mount package and while suffix UA is a three-lead ultramini SIP for through hole mounting.
The A3340 complements the A3240, which offers the same features, but with the opposite output polarity.

Features and Benefits
* Resistant to physical stress
* Superior temperature stability
* Output short-circuit protection
* Operation from unregulated supply
* Reverse battery protection
* Sol id-state reliability
* Small size

A3340ELHLT-T
A3340EUA-T
A3340LLHLT-T
A3340LUA-T

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