Content
  • Product Description

    BMA255 (not for new design-ins)

    The BMA255 is an advanced, ultra-small, triaxial,low-g acceleration sensor with digital interfaces, aiming for low-power consumer electronics applications. Featuring 12 bit digital resolution, the BMA255 allows very low-noise measurement of accelerations in 3 perpendicular axes and thus senses tilt, motion, shock and vibration in cellular phones, handhelds, computer peripherals, man-machine interfaces, virtual reality features and game controllers.

    With its ultra-small footprint of only 2 mm x 2 mm the BMA255 is unique in the class of low-noise, 12 bit digital acceleration sensors. On top, the BMA255 integrates a multitude of features that facilitate its use especially in the area of motion detection applications, such as device orientation detection, gaming, HMI and menu browser control. Featuring a full operation current consumption of only 130 µA the BMA255 is ideally suited for mobile consumer electronic devices. In low-power mode operation the current consumption can be even further reduced by more than one order of magnitude. The BMA255 is highly configurable in order to give the designer full flexibility when integrating the sensor into the system.

    Applications

    - Display profile switching (portrait/landscape, face-up/face-down switching)

    - Flat detection

    - Tap / double tap sensing

    - Menu scrolling

    - Gaming

    - Advanced power management for mobile devices

    - Shock and free-fall detection

    - Step-counting

    - Tilt compensation for electronic compass

     
     

    Wearables

    A wristband personal alarm clock will make sure that not only will you get up on time but also in sync with your natural biorhythm. A smartwatch can improve your health by detecting poor air quality in your environment. Smart fitness wear can improve the efficiency of your workout by measuring your speed and calorie consumption. What do all these wearable applications have in common? They are made possible by the almost invisible MEMS sensors and clever sensor solutions.

    discover the application

    watch the video

     
     



     

    Other sensors in the same category

     

    BMA455

    The BMA455 has been designed for best possible fit into modern mobile consumer electronics and IoT devices.

    BMA422

    With its embedded intelligence BMA422 is unique in the class of consumer grade accelerometers for smartphones, wearable devices and toys and gadgets.

    BMA253

    The ultra-small package of only 2 x 2mm² and the interfaces of the BMA253 have been defined to match a multitude of hardware requirements.

    BMA222E

    The BMA222E is an small acceleration sensor with a footprint of 2 x 2 mm² and a 8 bit digital resolution.

     

    BMA280

    The BMA280 (2 x 2 mm²) is an advanced, triaxial, low-g acceleration sensor with digital interfaces, aiming for low-power consumer electronics applications and a 14 bit digital resolution.

     
  • Technical data
    Parameter Technical data
    Digital resolution 12 bit
    Resolution
    (in ±2g range)
    0.98 mg
    Measurement ranges
    (programmable)
    ±2 g, ±4 g, ±8 g, ±16 g
    Sensitivity (calibrated) ±2 g: 1024 LSB/g
    ±4 g: 512 LSB/g
    ±8 g: 256 LSB/g
    ±16 g: 128 LSB/g
    Zero-g offset (typ., over life-time) ±60 mg
    Noise density (typ.) 150 µg/√Hz
    Bandwidths (programmable) 1000 Hz ... 8 Hz
    Digital inputs/outputs SPI & I²C,
    2x digital interrupt pins
    Supply voltage (VDD) 1.62 … 3.6 V
    I/0 supply voltage (VDDIO) 1.2 … 3.6 V
    Temperature range -40 … +85°C
    Current consumption
    - full operation
    - low-power mode
    130 µA (@ 2 kHz data rate)
    6.5 µA (@ 40 Hz data rate)
    FIFO data buffer 32 sample depth
    (for each axis)
    LGA package 2 x 2 x 0.95 mm³
    Shock resistance 10,000 g x 200 µs
    Interrupts - Data-ready (e. g. for processor synchronization)
    - Any-motion (slope) detection (e. g. for wake-up)
    - Tap sensing (e. g. for tap-sensitive UI control)
    - Orientation change recognition (e. g. for portrait/ landscape switching)
    - Flat detection (e. g. for position sensitive switching)
    - Low-g / high-g detection (e. g. for shock and freefall detection)
    - No-motion (e.g. for power saving)
     
     
  • Documents & drivers
    Type of document Download
    Flyer BST-BMA255-FL000-02
    Datasheet BST-BMA255-DS004-05
    Shipment & Packaging details BST-BMA255-SP001-00
    Handling & Soldering instructions BST-MAS-HS000-05
    Inline Calibration BST-MAS-AN030-00
    Driver BMA2x2 driver