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Bosch Sensortec

Magnetometer BMM350

High accuracy. Low-noise. Unique field shock recovery feature

BMM350 Product
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BMM350 Product

BMM350

Magnetometer

Losing orientation? Say goodbye thanks to the BMM350 digital pathfinder. It gets everyone to their destination, enables tracking of head movements and thus 3D audio for a personalized sound experience. In the AR/VR area we take up the struggle against motion sickness with the reduction of pixel latency. The 16-bit 3-axis magnetometer can be used in wearables and hearables, smartphones and tablets, AR and VR, and various vehicles. It is almost invisible due to its enormously small size (1.28mm x 1.28mm x 0.5mm) and has 20 times lower current consumption compared to its previous generation. BMM350 impresses with highest accuracy and ultra-low noise. The BMM350 is based on innovative TMR (tunnel magnetoresistance) technology and includes a unique field shock recovery feature. This capability makes the device very robust against external magnetic fields, ensuring high accuracy at all times.

Technical data

Parameter Technical data
Parameter
Package dimensions
Technical data
1.28 x 1.28 x 0.5 mm³ wafer level chip scale package (WLCSP)
Parameter
Operating range
Technical data
-40 °C to 85 °C
Parameter
Supply voltage
Technical data
VDDIO: 1.72 V … 3.6 V
VDD: 1.72 V … 1.98 V
Parameter
Typical output noise rms
3dB BW = ODR/2
Technical data
± 190 nTrms (x,y axis) and
± 450 nT rms (z axis)
Parameter
Sensitivity Temperature Drift (typ.)
Technical data
± -0.010 %/K
Parameter
Average typical current consumption
Technical data
200 µA @ 100 Hz in normal mode
Parameter
Magnetic field range, all axes
Technical data
± 2000 µT
Parameter
Zero-field offset drift after soldering (typ.)
Technical data
± 25 µT
Parameter
Sensitivity/gain error after soldering (typ.)
Technical data
± 1 %
Parameter
Interface
Technical data
I2C and I3C
Parameter
TCO error (typ.)
Technical data
± 200 nT/K
Parameter
Maximum sampling rate
Technical data
400 Hz (normal mode)

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Documents

Download white paper


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Datasheet
BST-BMM350-DS001
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Flyer
BST-BMM350-FL000
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Handling, soldering and mounting instruction
BST-BMM350-HS000
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Shipment packaging details
BST-BMM350-SP000
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Shuttle board flyer
BST-BMM350-SF000

Software

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Drivers

Applications and solutions

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!

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Woman taking a picture of New York City

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.

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Woman standing outside using VR glasses

AR & VR

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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Stories

Man and woman doing push ups with fitness trackers

Capturing the Moment - How smart sensors allow you to focus on the things that count

Capturing the moment and telling a story with a single image – that’s the passion of photographer Johannes Arnold. When searching for exciting subjects on the streets of Berlin, he has to fully focus on the surroundings and keep his hands free. This is made possible by his trusted companions: smart hearables. The built-in sensors from Bosch Sensortec allow users to make phone calls with ease and to operate smart devices by means of gestures or voice input.

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Other Magnetometers

BMM150

BMM150

BMM150 is a low-power and low-noise 3-axis digital geomagnetic sensor to be used in eCompass applications. The 12-pin wafer level chip scale package with a footprint of only 1.56 x 1.56mm² and 0.66mm height provides highest design flexibility to the developer of mobile devices.
More information
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