Magnetometer BMM350
High accuracy. Low-noise. Unique field shock recovery feature
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.
Navigation
Reduced motion
sickness in AR/VR
Positioning and
speed detection
Head orientation for 3D Audio
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)
|
