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e BMA250 is an advanced, ultra-small, triaxial, low-g acceleration sensor with digital interfaces, aiming for low-power consumer electronICs applications. The sensor allows 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.
The BMA250 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 139 μA the BMA250 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.
| Parameter | Technical data |
|---|---|
| Digital resolution | 10 bit |
| Resolution (±2 g range) | 3.9 mg |
| Measurement range (programmable) | ±2 g, ±4 g, ±8 g, ±16 g |
| Sensitivity (calibrated) | ±2 g: 256 LSB/g ±4 g: 128 LSB/g ±8 g: 64 LSB/g ±16 g: 32 LSB/g |
| Zero-g offset (over lifetime) | ±80 mg |
| Bandwidths (programmable) | 1000 Hz ... 8 Hz |
| Digital inputs/ outputs | SPI & I2C, 2x digital interrupt pins |
| Supply voltage | 1.62 V ... 3.6 V |
| I/O supply voltage | 1.2 V ... 3.6 V |
| Temperature range | -40°C … +85°C |
| Current consumption (full operation) | 139 μA (@ 2 kHz data rate) |
| Current consumption (low-power mode) | 7 μA (@ 40 Hz data rate) |
| LGA package | 2 x 2 x 0.95 mm3 |
| Interrupts |
|

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