Allegro Technology Solutions

Hall-Effect Sensor Technology

Allegro Hall Effect sensor integrated circuits (ICs) incorporate a Hall element with other circuitry, such as op-amps and comparators, to make digital position sensors and speed sensors, as well as linear and angle sensors with analog outputs.

Allegro has pioneered several major advances in the field of Hall Effect sensor ICs including chopper stabilization, vertical Hall Effect technology, circular vertical Hall (CVH) arrays, and non-intrusive high-speed hardware diagnostics. Visit each section below to learn more.

 

Hall-Effect Overview and Applications
Allegro Hall Effect sensor integrated circuits (ICs) incorporate a Hall element with other circuitry, such as op-amps and comparators, to make digital position sensors and speed sensors, as well as linear and angle sensors with analog outputs.
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Chopper Stabilization
The Allegro chopper stabilization technique, Dynamic Quadrature Offset Cancellation, removes key sources of the output drift induced by thermal and mechanical stresses.
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vht logo

Multi-Dimensional Sensing
Advances in IC design and fabrication allow the creation of vertical Hall elements sensitive to magnetic fields parallel to the plane of the IC. They function under the same principles as planar Hall elements, which are sensitive only to magnetic fields perpendicular to the plane of the IC.  



GMR

Giant Magnetoresistance (GMR) Sensor Technology

GMR offers the ability to improve signal to noise, increase resolution, or reduce the required field level for a given solution (smaller magnets, larger air gaps, etc.). Additionally, sensing in-plane to the wafer or IC surface gives the ability to create new, more robust, differentially magnetic solutions than possible with through-plane sensitive Hall technology.
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