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A1382

Allegro MicroSystems
Part Number A1382
Manufacturer Allegro MicroSystems
Description (A1381 - A1384) Programmable Linear Hall Effect Sensors
Published Mar 15, 2007
Detailed Description www.DataSheet4U.com A1381, A1382, A1383, and A1384 Programmable Linear Hall Effect Sensors with Analog Output Available...
Datasheet PDF File A1382 PDF File

A1382
A1382

Overview
www.
DataSheet4U.
com A1381, A1382, A1383, and A1384 Programmable Linear Hall Effect Sensors with Analog Output Available in a Miniature Thin Profile Surface Mount Package Features and Benefits ▪ Customer programmable offset, sensitivity, sensitivity temperature coefficient, and polarity ▪ Programmability at end-of-line ▪ Ratiometric sensitivity, quiescent voltage output, and clamps for interfacing with application DAC ▪ Temperature-stable quiescent voltage output and sensitivity ▪ Precise recoverability after temperature cycling ▪ Output voltage clamps provide short circuit diagnostic capabilities ▪ Wide ambient temperature range: –40°C to 150°C ▪ Immune to mechanical stress ▪ Miniature package options Description New applications for linear output Hall effect sensors, such as displacement, angular position, and current measurement, require high accuracy in conjunction with small package size.
The Allegro® A138x family of programmable linear Hall effect sensors was designed specifically to achieve both goals.
These temperature-stable devices are available in a miniature surface mount package (SOT23-W) and an ultramini throughhole single-in-line package.
The accuracy of these devices is enhanced via programmability on the output pin for end-of-line optimization without the added complexity and cost of a fully programmable device.
These ratiometric Hall effect sensors provide a voltage output that is proportional to the applied magnetic field.
Both the quiescent voltage output and magnetic sensitivity are useradjustable.
The quiescent voltage output can be set around 50% of the supply voltage, and the sensitivity adjusted between 2 mV/G and 9 mV/G over the device family.
Programming selections also exist for output polarity and temperature compensation.
The features of this linear family make it ideal for high accuracy requirements of automotive and industrial applications, and performance is guaranteed over an extended temperature range, –40°C to 150°C.
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