High Precision Tri-axis Magnetic Sensor
PRODUCTS
High Precision Tri-axis Magnetic Sensor
AK09940
Description
Conventional tri-axis magnetic sensors have been used for position tracking applications. However, there are cases when sufficient performance is not possible due to magnetic field noise. World class ultra-low noise tri-axis sensing from the AK09940 resolves this problem, increasing magnetic position tracking accuracy for AR and VR.
The AK09940 is ideal for magnetic particle testing and metal contamination detection with triaxial magnetic measuring, which measures wet field, small changes, and distortion in magnetic-fields with high precision. In addition, the AK09940 has very low power consumption current suitable for triaxial measurement in wearable and IoT devices with small batteries.
World-Class Ultra-Low Noise
The AK09940 allows for measurement of minute magnetic signals with ultra-low noise (40nT RMS) in the X, Y, and Z axes that are normally drowned out by noise.
Magnetic position tracking used in controllers such as AR and VR devices has the advantage that it can be detected even if the sensor is hidden behind objects. However, due to signal noise on the receiving side, sufficient performance ordinarily may not be obtained in terms of detection range, position accuracy, and response speed. This problem is solved with the ultra-low noise tri-axis magnetic sensor on the receiving side.
Ultra-Low Current Consumption
An ultra-low current consumption of 30μA @ 100Hz makes it ideal for devices using small-capacity batteries.
Small Package
The AK09940 is housed in a small LGA 1.6 x 1.6mm package.
Application
Augmented Reality/Virtual Reality (AR/VR) Devices, Wearable Devices, Magnetic Metal Particle Testers, Magnetic Mapping
Key Features
Block Diagram
Main Specifications
Tri-axis Magnetic Sensor | ||
---|---|---|
High Precision Tri-axis Magnetic Sensor | ||
Part Number | AK09940 | |
Technology | TMR | |
Magnetic Sensitivity | [nT/LSB] | 10 |
Measurement Range | [μT] | ±1200 |
Measuremet Time | [ms] | 0.66 / 0.98 / 1.62 / 2.9 |
Noise (Power Mode) | [nT RMS] | 70 / 60 / 50 / 40 |
Output Bit | [bit] | 18 |
Max. ODR | [Hz] | 400 |
Interface | I2C / 4-wire SPI | |
Analg Power Supply VDD | [V] | +1.7 to +1.98 |
Digital Power Supply VID | [V] | +1.65 to VDD |
Current Consumption@100Hz ODR (Power Mode) | [μA] | 30 / 60 / 100 / 200 |
Current Consumption when measuring | [mA] | 0.93 |
FIFO | 8 steps | |
Package | 11-pin LGA | |
Package Size | [mm] | 1.6 × 1.6 × 0.6 |
(English)
Download
AK09940 Datasheet
English [019002992-E-00]
(42 Pages PDF: 732KB)
Please fill in the following form and send it to us.
A URL for downloading will be sent to your registered email address.
Note
* When you submit the form, it will automatically be registered in myAKM account.
* Please read our Terms and Conditions ,and Privacy Policy before using this service. By registering your e-mail address, you agree to AKM’s Terms of use and Privacy policy.
* Please refer to Terms and Conditions on Cookie technology.
myAKM Membership
You can receive the latest product information and notifications of new and updated documents, news, topics, events and exhibitions by e-mail.