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Acal BFi: Digital, 3-axis Accelerometer
The BMA250E is a tri-axial, low-g acceleration sensor with digital output for consumer application. It allows measurements of acceleration in three perpendicular axes. An evaluation circuitry (ASCI) converts the output of a micromechanical acceleration-sensing structure (MEMS) that works according to the differential capacitance principle.
Package and interfaces of the BMA250E have been defined to much a multitude of hardware requirements. Since the sensor features an ultra-small footprint and a flat package it is ingeniously suited for mobile application.
The BMA250E offers a variable VDDIO voltage range from 1.2V to 3.6V and can be programmed to optimize functionality, performance and power consumption in customer specific application.
In addition it features an on-chip interrupt controller enabling motion-based applications without use of a microcontroller.
The BMA250E senses tilt, motion, inactivity and shock vibration in cell phones, handheld, computer peripherals, man-machine interfaces, virtual reality features and game controllers.
Features
Ultra-small package
Digital interface
Programmable functionality
On-chip FIFO
On-chip interrupt controller
Ultra-low power
Temperature sensor
RoHS compliant, halogen-free
Specifications
Number of Axes: 3
Measurement Range (g): ±2, ±4, ±8, ±16
Scale Factor/Sensitivity (LSB/g): 256, 128, 64, 32
Cross axis sensitivity (% typ): 1
Bandwidth (Hz): 8 to 1000
Noise (μg/√Hz): 400
Package: LGA-12
Operating Temperature Range (°C): -40 to 85