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A1140

Part Number	A1140
Manufacturer	Allegro MicroSystems
Description	Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches
Published	Mar 23, 2005
Detailed Description	A1140/41/42/43 Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches The A1140, A1141, A1142, and A1143 de...
Datasheet	A1140 PDF File

Overview

A1140/41/42/43 Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches The A1140, A1141, A1142, and A1143 devices are sensitive, two-wire, unipolar, Hall effect switches that are factory-programmed at end-of-line to optimize magnetic switchpoint accuracy.
These devices are produced on the Allegro MicroSystems advanced BiCMOS wafer fabrication process, which implements a patented, high-frequency, chopper-stabilization technique that achieves magnetic stability and eliminates the offsets that are inherent in single-element devices exposed to harsh application environments.
Commonly found in a number of automotive applications, the A1140-43 family of devices are utilized to sense: s...

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