BMA280 Description
The BMA280 is a triaxial, low-g acceleration sensor with digital output for consumer applications. It allows measurements of acceleration in three perpendicular axes. An evaluation circuitry (ASIC) converts the output of a micromechanical acceleration-sensing structure (MEMS) that works according to the differential capacitance principle. Package and interfaces of the BMA280 have been defined to match a multitude of hardware requirements. Since the sensor features an ultra-small footprint and a flat package it is ingeniously suited for mobile applications.
The BMA280 offers a variable VoDIo voltage range from 1.2V to 3.6V and can be programmed to optimize functionality, performance and power consumption in customer specific applications. In addition it features an on-chip interrupt controller enabling motion-based applications without use of a microcontroller. The BMA280 senses tilt, motion, inactivity and shock vibration in cell phones, handhelds, computer peripherals, man-machine interfaces, virtual reality features and game controllers.
BMA280 Features
Ultra- Small package
LGA package (12 pins), footprint 2mm x 2mm,
height 0.95mm
Digital interface
SPI (4-wire, 3-wire), IPC, 2 interrupt pins
Voolo voltage range: 1.2V to 3.6V
Programmable functionality
Acceleration ranges +2g/4g/+8g/+16g
Low-pass filter bandwidths 500Hz - <8Hz
up to an max. output data read out of 2kHz (unfilte
On-chip FIFO
Integrated FIFO with a depth of 32 frames
On-chip interrupt controller
BMA280 Applications
Display profile switching
Menu scrolling, tap / double tap sensing
Gaming
Pedometer / step counting
Free-fall detection
E-compass tilt compensation
Drop detection for warranty logging
Advanced system power management for mobile applications
