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Bosch Sensortec

IMU: BMI323

Easy to use. Accurate. Low power.

BMI323

IMU combining accelerometer and gyroscope

For all that want to get the maximum out as quickly as possible, the BMI323 Inertial Measurement Unit (IMU) is the right choice. As an all-rounder it convinces with its wide range of use cases: angle & position detection enables fast laptop booting or the automatic adjustment of settings. Motion detection lets toys come to life for a unique gaming experience and the step counting function is the ideal companion in everyday life. BMI323 can be used in notebooks & tablets, toys & gadgets, game controllers & smart remote controls, in wearables and more. The IMU is easy-to-use due to integrated features and configurable power modes.The BMI323 is a general purpose, low-power IMU that combines precise acceleration and angular rate (gyroscopic) measurement with intelligent on-chip motion-triggered interrupt features. The 6-axis IMU comprises a 16-bit triaxial gyroscope, a 16-bit triaxial accelerometer, and a 16-bit digital temperature sensor in a miniature 2.5 x 3.0 x 0.83 mm³ (14-pin) LGA package.

Technical data

Parameter Technical data
Parameter
Digital resolution
Technical data
Accelerometer (A): 16-bit
Gyroscope (G): 16-bit
Parameter
Resolution
Technical data
(A): 16-bit or 0.06 mg/LSB
(G): 16-bit or 0.004 dps/LSB
Parameter
Measurement range and sensitivity (calibrated)
Technical data
(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
Parameter
Zero offset (typ. over lifetime)
Technical data
(A): ± 50 mg
(G): ± 1 °/s
Parameter
TCO
Technical data
(A): ± 0.3 mg/K
(G): ± 0.04 °/s/K
Parameter
Noise density (typ.)
Technical data
(A): 180 μg/√Hz
(G): 0.007 °/s/√Hz
Parameter
Bandwidths (progr.)
Technical data
(A) 6.2 Hz ... 1677 Hz
(G) 6.2 Hz ... 563 Hz
Parameter
Selectable output data rates
Technical data
12.5 Hz ... 6.4 kHz
Parameter
Digital inputs/outputs
Technical data
SPI, I2C, I3C
Parameter
Output data rate (ODR)
Technical data
(A): 12.5 Hz … 1.6 kHz
(G): 25 Hz … 6.4 kHz
Parameter
Digital inputs/outputs
Technical data
2x SPI; 2x I2C; AUX I/F; OIS I/F
2x digital interrupts
Parameter
Supply voltage
Technical data
1.71 ... 3.63 V (VDD)
1.08 ... 3.63 V (VDDIO)
Parameter
Temperature range
Technical data
-40 ... +85 °C
Parameter
Current consumption (high performance mode, A+G)
Technical data
790 μA
Parameter
LGA package
Technical data
2.5 x 3.0 x 0.83 mm³

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Documents

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Software

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Applications and solutions

Woman taking pitcures of a city next to a river

Smartphones & tablets

Did you know that you most likely have a Bosch MEMS sensor in your pocket? More than every second smartphone and tablet worldwide contains at least one of these tiny helpers. Bosch MEMS sensors stabilize images, detect gestures and activities, and count your steps.

Woman doing sports using hearables and smartwatch

Wearables & hearables

Smartwatches, wristbands, smart clothes and hearables: whether supporting your fitness through calorie counting or helping you orient yourself through navigation, our accurate and ultra-low power sensing solutions turn a regular wearable into your daily companion!

Woman and man lying on the floor and playing video games

Gaming & toys

AR and VR technologies can support gaming, learning, navigation and maintenance. Crucial requirements for a pleasant AR and VR experience are real-time motion detection, head movement tracking and precise sensor data fusion, which are enabled by our sensing solutions.

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