Accelerometer sensor: BMA253
Accelerometer BMA253
BMA253
Accelerometer
The BMA253 is a triaxial, low-g acceleration sensor with digital output for consumer applications and is ingeniously suited for mobile devices. The BMA253 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 a microcontroller. The BMA253 senses tilt, motion, inactivity, and shock vibration in cell phones, handhelds, computer peripherals, man-machine interfaces, virtual reality features, and game controllers.
Continuously usable due to always-on low-power speech processing
Easy-to-integrate due to small size
Gesture recognition
Technical data
| Parameter | Technical data |
|---|---|
|
Parameter
Digital resolution
|
Technical data
12 bit
|
|
Parameter
Resolution
(in ±2g range) |
Technical data
0.98 mg
|
|
Parameter
Measurement ranges
(programmable) |
Technical data
±2 g, ±4 g, ±8 g, ±16 g
|
|
Parameter
Sensitivity (calibrated)
|
Technical data
±2 g: 1024 LSB/g
±4 g: 512 LSB/g ±8 g: 256 LSB/g ±16 g: 128 LSB/g |
|
Parameter
Zero-g offset (typ., over life-time)
|
Technical data
±80 mg
|
|
Parameter
Noise density (typ.)
|
Technical data
220 µg/√Hz
|
|
Parameter
Bandwidths (programmable)
|
Technical data
1000 Hz ... 8 Hz
|
|
Parameter
Digital inputs/outputs
|
Technical data
SPI & I²C,
2x digital interrupt pins |
|
Parameter
Supply voltage (VDD)
|
Technical data
1.62 … 3.6 V
|
|
Parameter
I/0 supply voltage (VDDIO)
|
Technical data
1.2 … 3.6 V
|
|
Parameter
Temperature range
|
Technical data
-40 … +85°C
|
|
Parameter
Current consumption
- full operation - low-power mode |
Technical data
130 µA (@ 2 kHz data rate)
6.5 µA (@ 40 Hz data rate) |
|
Parameter
FIFO data buffer
|
Technical data
32 sample depth
(for each axis) |
|
Parameter
LGA package
|
Technical data
2 x 2 x 0.95 mm³
|
|
Parameter
Shock resistance
|
Technical data
10,000 g x 200 µs
|
|
Parameter
Interrupts
|
Technical data
|
