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SBOS729A – OCTOBER 2015 – REVISED MARCH 2016 DRV425 Fluxgate Magnetic-Field Sensor
1 Features 3 Description The DRV425 is designed for single-axis magnetic
field-sensing applications and enables electricallyisolated, high-sensitivity, and precise dc-and ac-field
measurements. The device provides the unique and
proprietary, integrated fluxgate sensor (IFG) with an
internal compensation coil to support a high-accuracy
sensing range of В±2 mT with a measurement
bandwidth of up to 47 kHz. The low offset, offset drift,
and noise of the sensor, combined with the precise
gain, low gain drift, and very low nonlinearity provided
by the internal compensation coil, result in unrivaled
magnetic field measurement precision. The output of
the DRV425 is an analog signal proportional to the
sensed magnetic field. 1 High-Precision, Integrated Fluxgate Sensor:
– Offset: ±8 µT (Max)
– Offset Drift: ±5 nT/°C (Typ)
– Gain Error: 0.04% (Typ) …
