Quality assurance of BMA422 free fall detection ± 80mg zero gravity offset accelerometer sensor

Product Descriptions

The BMA422 is an ultra-small, triaxial, low-g acceleration sensor with digital interfaces, aiming for low-power consumer electronics applications. 

Featuring 12 bit digital resolution and embedded intelligence, the BMA422 allows low-noise measurement of accelerations in 3 perpendicular 

axes and thus senses significant motion, tilt and enables plug ’n’ play step counting in smart phones Furthermore the device is optimized to

fulfill Android low power accelerometer requirements.

With its embedded intelligence BMA422 is unique in the class of consumer grade accelerometers for smart phones, wearable devices and toys and gadgets. The embedded intelligence enables low current step-counting at 25 µA. On top, the BMA422 integrates a multitude of other features (e.g. tilt, significant motion etc.) that facilitate its use especially in the area of Android based smart phones, to fulfill the newest Android M accelerometer requirements. Featuring a high performance measurement mode with low pass filters and a current consumption of only 150 μA the BMA422 is robust to vibrations and aliasing. In low-power mode operation the current consumption can be even further reduced by more than one order of magnitude. This fulfills the current consumption requirements for always-on applications. The BMA422 is highly

configurable in order to give the designer full flexibility when integrating the sensor into the system

Product Applications

 Step-counting

 Significant motion

 Tilt detection

 Low power user interaction

 Gesture recognition

 Advanced power management for mobile devices

 Shock and free-fall detection

 Tilt compensation for electronic compass

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