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A1326

Allegro MicroSystems
Part Number A1326
Manufacturer Allegro MicroSystems
Description Low-Noise Linear Hall-Effect Sensor
Published Apr 10, 2015
Detailed Description A1324, A1325, and A1326 Low-Noise Linear Hall-Effect Sensor ICs with Analog Output FEATURES AND BENEFITS • Temperature-...
Datasheet PDF File A1326 PDF File

A1326
A1326

Overview
A1324, A1325, and A1326 Low-Noise Linear Hall-Effect Sensor ICs with Analog Output FEATURES AND BENEFITS • Temperature-stable quiescent output voltage and sensitivity • Output voltage proportional to magnetic flux density • Low-noise output increases accuracy • Precise recoverability after temperature cycling • Ratiometric rail-to-rail output • Wide ambient temperature range: –40°C to 150°C • Immune to mechanical stress • Solid-state reliability • Enhanced EMC performance for stringent automotive applications PACKAGES 3-pin ultramini SIP 1.
5 mm × 4 mm × 3 mm (suffix UA) 3-pin SOT23-W 2 mm × 3 mm × 1 mm (suffix LH) Approximate footprint DESCRIPTION New applications for linear output Hall-effect devices, such as displacement, angular position, and current measurement, require high accuracy in conjunction with small package size.
The Allegro™ A1324, A1325, and A1326 linear Hall-effect sensor ICs are designed specifically to achieve both goals.
This temperature-stable device is available in a miniature surface mount package (SOT23W) and an ultra-mini through-hole single in-line package.
These ratiometric Hall effect sensor ICs provide a voltage output that is proportional to the applied magnetic field.
They feature a quiescent voltage output of 50% of the supply voltage.
The A1324/25/26 feature factory programmed sensitivities of 5.
0 mV/G, 3.
125 mV/G, and 2.
5 mV/G, respectively.
The features of these linear devices make them ideal for use in automotive and industrial applications requiring high accuracy, and operate through an extended temperature range, –40°C to 150°C.
Each BiCMOS monolithic circuit integrates a Hall element, temperature-compensating circuitry to reduce the intrinsic sensitivity drift of the Hall element, a small-signal high-gain amplifier, a clamped low-impedance output stage, and a proprietary dynamic offset cancellation technique.
These devices are available in a 3-pin ultra-mini SIP package (UA), and a 3-pin surface mount SOT-23 style package ...


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