IMU: BMI055
High stability. Robustness.
BMI055
IMU combining accelerometer and gyroscope
The BMI055 is an ultra-small, 6-axis inertial measurement unit (IMU) consisting of a digital, tri-axial 12-bit acceleration sensor and a triaxial 16-bit gyroscope. This sensor is unique in the class of high-stability IMUs measuring angular rates and accelerations in three perpendicular axes. Therefore, BMI055 is able to detect tilt, motion, shock and vibration in cellular phones, handhelds, computer peripherals, HMI, remote and game controllers. This inertial sensor integrates a multitude of features that especially facilitate motion detection applications such as device orientation measurement, gaming, HMI and menu browser control.
Technical data
| Parameter | Technical data |
|---|---|
|
Parameter
Digital resolution
|
Technical data
Accelerometer (A): 12 bit
Gyroscope (G): 16bit |
|
Parameter
Resolution
|
Technical data
(A): 0,98 mg
(G): 0.004°/s |
|
Parameter
Measurement ranges
(programmable) |
Technical data
(A): ± 2 g, ± 4 g, ± 8 g, ± 16 g
(G): ± 125°/s, ± 250°/s, ± 500°/s, ± 1000°/s, ± 2000°/s |
|
Parameter
Sensitivity (calibrated)
|
Technical data
(A):
± 2 g 1024 LSB/g ± 4 g 512 LSB/g ± 8 g 256 LSB/g ± 16 g 128 LSB/g (G): ± 125°/s 262.4 LSB/°/s ± 250°/s: 131.2 LSB/°/s ± 500°/s: 65.6 LSB/°/s ± 1000°/s: 32.8 LSB/°/s ± 2000°/s: 16.4 LSB/°/s |
|
Parameter
Zero offset (typ., over life-time)
|
Technical data
(A): ± 70mg, (G): ± 1°/s
|
|
Parameter
Noise density (typ.)
|
Technical data
(A): 150μg/√Hz
(G): 0.014 °/s/√Hz |
|
Parameter
Bandwidths (programmable)
|
Technical data
1000Hz … 8 Hz
|
|
Parameter
Digital inputs/outputs
|
Technical data
SPI, I²C, 4x digital interrupts
|
|
Parameter
Supply voltage (VDD)
|
Technical data
2.4 … 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
5.15 mA < 10 μA |
|
Parameter
FIFO data buffer
|
Technical data
(A) 32 samples depth /
(G) 100 samples (each axis) |
|
Parameter
LGA package
|
Technical data
3 x 4.5 x 0.95 mm³
|
|
Parameter
Shock resistance
|
Technical data
10,000 g x 200 μs
|
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