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3240 Datasheet - Allegro MicroSystems

3240_AllegroMicroSystems.pdf

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Datasheet Details

Part number:

3240

Manufacturer:

Allegro MicroSystems

File Size:

204.29 KB

Description:

Chopper-stabilized/ precision hall-effect switch.

3240, CHOPPER-STABILIZED/ PRECISION HALL-EFFECT SWITCH

Chopper-Stabilized Technique.

The Hall element can be considered as a resistor array similar to a Wheatstone bridge.

A large portion of the offset is a result of the mismatching of these resistors.

These devices use a proprietary dynamic offset cancellation technique, with an internal high-frequency

3240 Suffix ‘ LT’ & ‘ UA’ Pinning CHOPPER-STABILIZED, PRECISION HALL-EFFECT SWITCH The A3240 Hall-effect switch is an extremely temperature-stable and stress-resistant sensor especially suited for operation over extended temperature ranges 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

3240 Features

* I I I I I I I Resistant to Physical Stress Superior Temperature Stability Output Short-Circuit Protection Operation From Unregulated Supply Reverse Battery Protection Solid-State Reliability Small Size Always order by complete part number: the prefix ‘A’ + the basic fourdigit part number + a suffix

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