Integrated Magnetic Field Sensor Offers Higher Performance In A Tiny Package

Included are improved high resolution magneto-resistive sensors with automatic degaussing (demagnetising) strap drivers, offset cancellation and a 12-bit ADC for high resolution earth fields sensing. Measuring just 3 x 3 x 0.9 mm, it barely covers a finger tip.

By using established Anisotropic Magnetoresistive (AWR) technology, this product features advanced precision in axis sensitivity and linearity whilst measuring both the direction and the magnitude of the earth's magnetic fields.

Designed for low voltage operations (2.16 to 3.6V) and low power consumption (100µA) and compatible with battery powered operations. The built in strap drive circuits provide demagnetisation of the sensor for each measurement as well as offset compensation for consistent measurements of 1/2 degrees and reduced need for calibration.

Optional extras include built self test which is built into the internal ASIC that can be used to quickly verify sensors full functionability without need of test equipment. Sensitivity matching from different axes/sensors and the ability to adjust sensitivity drift due to temperature.

Deigned for high-volume, cost sensitive OEM designs and compatible with high speed SMT assembly. It is available in tape and reel packaging. Complying with current environmental standards. Demonstration and pin out boards for product evaluation and development are available.

Applications include auto navigation systems, personal navigation devices, magnetometers and consumer electronics such as mobile phones.