Inertial Measurement Unit: BMI323
The BMI323 is a general purpose, low-power Inertial Measurement Unit (IMU) that combines precise acceleration and angular rate (gyroscopic) measurement with intelligent on-chip motion-triggered interrupt features.BMI323 targets fast and accurate inertial sensing in all applications. It is an easy-to-use IMU with an integrated feature set.
- Easy-to-use standard IMU
- I3C, I2C, SPI Interface
- Low-noise gyroscope
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Technical data
Digital resolution
Accelerometer (A): 16-bit
Gyroscope (G): 16-bit
Gyroscope (G): 16-bit
Resolution
(A): 16-bit or 0.06 mg/LSB
(G): 16-bit or 0.004 dps/LSB
(G): 16-bit or 0.004 dps/LSB
Measurement range and sensitivity (calibrated)
(A)
±2 g: 16384 LSB/g
±4 g: 8192 LSB/g
±8 g: 4096 LSB/g
±16 g: 2048 LSB/g
(G)
±125 °/s: 262.1 LSB/°/s
±250 °/s: 131.1 LSB/°/s
±500 °/s: 65.5 LSB/°/s
±1000 °/s: 32.8 LSB/°/s
±2000 °/s: 16.4 LSB/°/s
±2 g: 16384 LSB/g
±4 g: 8192 LSB/g
±8 g: 4096 LSB/g
±16 g: 2048 LSB/g
(G)
±125 °/s: 262.1 LSB/°/s
±250 °/s: 131.1 LSB/°/s
±500 °/s: 65.5 LSB/°/s
±1000 °/s: 32.8 LSB/°/s
±2000 °/s: 16.4 LSB/°/s
Zero offset (typ. over lifetime)
(A): ± 50 mg
(G): ± 1 °/s
(G): ± 1 °/s
TCO
(A): ± 0.3 mg/K
(G): ± 0.04 °/s/K
(G): ± 0.04 °/s/K
Noise density (typ.)
(A): 180 μg/√Hz
(G): 0.007 °/s/√Hz
(G): 0.007 °/s/√Hz
Bandwidths (progr.)
(A) 6.2 Hz ... 1677 Hz
(G) 6.2 Hz ... 563 Hz
(G) 6.2 Hz ... 563 Hz
Selectable output data rates
12.5 Hz ... 6.4 kHz
Digital inputs/outputs
SPI, I2C, I3C
Output data rate (ODR)
(A): 12.5 Hz … 6.4 kHz
(G): 25 Hz … 6.4 kHz
(G): 25 Hz … 6.4 kHz
Digital inputs/outputs
I2C, I3C, and SPI
2x digital interrupts
2x digital interrupts
Supply voltage
1.71 ... 3.63 V (VDD)
1.08 ... 3.63 V (VDDIO)
1.08 ... 3.63 V (VDDIO)
Temperature range
-40 ... +85 °C
Current consumption (high performance mode, A+G)
790 μA
LGA package
2.5 x 3.0 x 0.83 mm³
