Hall-effect sensor IC designed for high accuracy applications

Posted By : Anna Flockett
Hall-effect sensor IC designed for high accuracy applications

The programmable linear Hall-effect sensor IC, A1377 from Allegro MicroSystems Europe is designed for applications that require high accuracy and high resolution without compromising bandwidth. The new device uses segmented, linearly interpolated temperature compensation technology which greatly reduces the total error of the device across the whole temperature range.

As a result, it’s suited to linear and rotary position in automotive applications such as actuators and valves.

The A1377 is available in a through-hole, small form factor, Single In-line Package (SIP) and has a broad range of sensitivities and offset operating bandwidths. The accuracy and flexibility of this device is enhanced with user programmability, via the supply voltage (Vcc) and output pins, which allows it to be optimised to the application.

This ratiometric Hall-effect sensor IC provides a voltage output that is proportional to the applied magnetic field. The quiescent voltage output is user-adjustable from approximately 5% to 95% of the supply voltage. The device sensitivity is adjustable within the range of 1-14mV/G.

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.

The features of this linear device make it suited for use in automotive and industrial applications requiring high accuracy, and apply across an extended temperature range, from -40 to 150°C. 

The A1377 sensor is provided in a 3-pin single in-line package (UC suffix) with bypass capacitors integrated into the package. It is lead (Pb) free, with 100% matt-tin leadframe plating. 

Downloads


You must be logged in to comment

Write a comment

No comments




Sign up to view our publications

Sign up

Sign up to view our downloads

Sign up

GISEC Global
23rd April 2024
United Arab Emirates Halls 2-8 - Dubai World Trade Centre
The Magnetics Show US
22nd May 2024
United States of America The Pasadena Convention Center
2024 World Battery & Energy Storage Industry Expo (WBE)
8th August 2024
China 1st and 2nd Floor, Area A, China Import and Export Fair Complex