Kionix’s three-axis KXTJ3 accelerometer is small enough for key fobs
Kionix’s three-axis KXTJ3 accelerometer is small enough for key fobs: Kionix, a Rohm Group Company, announces the release of the KXTJ3, a thee-axis accelerometer. It is packaged in a tiny 2.0 x 2.0 x 0.9mm form factor.
It follows the Kionix KXTJ2 accelerometer, but offers a size and price point that is embedded in toys, wearables, remote controls to the SmartHome and internet of things (IoT).
The KXTJ3 is a drop-in replacement for the KXTJ2, and offers improvements in noise performance to extended range, to improve interrupt functionality.
A common use case of accelerometers is for power savings, allowing the system to sleep when there is no motion and then triggering the system to wake-up when motion occurs. The KXTJ3 has a high resolution embedded motion wake-up engine offering thresholds as low as 3.9mg. It can also operate as low as 1.5microA at its lowest output data rates (ODR) of 0.781Hz.
Accelerometers can be used for detecting device orientation relative to gravity, enabling a more natural user-experience and interactivity, and fostering automation by providing awareness and context of a device or its use.
The KXTJ3 offers g-ranges of 2.0, 4.0, 8.0, or 16g and resolution modes up to 14g. It supports the I²C protocol up to 3.4MHz and has a built-in voltage regulator offering stable operation from 1.71 to 3.6V.
Kionix, is part of Rohm Semiconductor. It is a MEMS inertial sensor manufacturer based in Ithaca, NY, USA, and offers low-power accelerometers, gyroscopes, and six-axis combination sensors, comprehensive software libraries that support a full range of sensor combinations, operating systems and hardware platforms. Products are used in consumer, automotive, health and fitness and industrial applications.
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