Precision fluxgate magnetic field sensor for single-axis applications

Available now from Mouser stock, the Texas Instruments (TI) DRV425 precision fluxgate magnetic field sensor is designed for single-axis magnetic field-sensing applications such as linear position sensing, current sensing in busbars, over-the-trace current sensing and general-purpose magnetic-field sensors. The sensor enables electrically-isolated, high-sensitivity, and precise DC- and AC field measurements. The device provides an integrated fluxgate sensor (IFG) with an internal compensation coil to support a high-accuracy sensing range of ±2mT. It also has a measurement bandwidth of up to 47kHz. This sensor provides a low offset, offset drift, and noise of the sensor. The output of the DRV425 is an analog signal proportional to the sensed magnetic field. Combined with the precise gain, low gain drift, and very low nonlinearity provided by the internal compensation coil, this results in unrivalled magnetic field measurement precision, says the company.