A highly accurate three-axis magnetometer combines an extremely sensitive tunnel magneto-resistive (TMR) element developed by TDK and an advanced electronic compass ASIC designed by AKM in a small package. The new TMR magnetometer on a chip, which has miniature dimensions of just 1.6×1.6×0.6 mm, features the industry’s lowest RMS noise of just 40 nT-rms and a current consumption of only 40 µA at an output data rate of 100 Hz.
Thanks to its high sensitivity of 10 nT/LSB, the magnetic sensor can precisely detect minute changes 
in magnetic fields, enabling the highly accurate detection of both position and orientation with the help of the Earth’s magnetic field or a magnetic field generator. These qualities make the TMR magnetometer a candidate for compact electronic devices such as smartphones, tablets, game console controllers and all kinds of wearable devices, as well as other applications that demand high position and orientation precision such as virtual, augmented or mixed reality (VR, AR, and MR) or indoor navigation. The new three-axis magnetic sensor is also suitable for integration into IoT devices, for which strong market growth is expected.
Main applications include compact electronic devices such as smartphones, tablets and game console controllers, all kinds of wearable devices or IoT devices, and any applications that demand high position and orientation precision such as virtual, augmented or mixed reality (VR, AR, and MR) or indoor navigation
TDK U.S.A. Corp., 455 RXR Plaza, Uniondale, NY 11556, (516) 535-2600, http://www.tdk.com/
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