Acceleration sensor: BMA422
The BMA422 is an ultra-small accelerometer with digital interfaces, 12 bit digital resolution and embedded intelligence, aiming for low-power consumer electronics applications. It allows for measurements in 3 perpendicular axes and fulfills AndroidTM N low power accelerometer requirements.
- Low-g acceleration
- Low-noise measurements
- Including AndroidTM features
Technical data
Digital resolution
12 bit
Resolution
(in ±2g range)
(in ±2g range)
0.98 mg
Measurement ranges
(programmable)
(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
±4 g: 512 LSB/g
±8 g: 256 LSB/g
±16 g: 128 LSB/g
Zero-g offset (typ., over life-time)
±80 mg
Noise density (typ.)
140 µg/vHz
Bandwidths (programmable)
1600 Hz ... 1.5 Hz
Digital inputs/outputs
SPI & I2C,
2x digital interrupt pins
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
- full operation
- low-power mode
150 μA
12 μA (at 50Hz data rate)
12 μA (at 50Hz data rate)
FIFO data buffer
1 kB
LGA package
2 x 2 x 0.95 mm³
Shock resistance
10,000 g x 200 µs
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