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Dual Hall-Effect Latches

We've combined vertical Hall-effect technology (AVHT) with traditional planar Hall-effect technology to create devices that have the ability to sense in two dimensions on a single wafer. 

These vertical Hall sensing solutions enable new, smaller, lower-cost system form-factors and revolutionize motors/encoders, delivering quadrature signals independent of magnet pitch or air-gap. All new devices are also designed to ISO 26262 for functional safety.

Selection & Solution Guides

Allegro Product Selection Guide (PDF)

Documentation & Resources

Application Note

Improved Speed and Direction Sensing Using Vertical Hall Technology

The A1262 2D dual-channel Hall-effect sensor IC is offered in a 5-pin SOT23W surface-mount package, as well as a 4-pin SIP through-hole package. It features operation with traditional planar—as well as vertical—magnetic field direction.

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Application Note

Digital Position Sensor ICs—Continuous-Time to Chopper-Stabilized Cross-Reference Guide 

This application guide will outline the differences between the two sensor types and provide system designers with the tools needed in order to select the appropriate sensor for their system.

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Application Note

Ring Magnet Speed Sensing for Electronic Power Steering

Proper control of Electric Power Steering (EPS) systems requires both speed and direction information from the steering input shaft. This control will typically come from both high-resolution speed information and fairly coarse position information.

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