AK09940A

Preview

Ultrahigh precision 3-axis Electronic Magnetometer

Ultrahigh precision 3-axis Electronic Magnetometer

Preview

Description

The AK09940A is a 3-axis Electronic Magnetometer that uses TMR magnetic sensor elements to achieve world-class ultra-low noise performance.
The sensor element, signal processing circuit, AD converter, etc. are incorporated into an ultra-small package, and the measured magnetic vector is digitally output in 18-bits for each of the X, Y, and Z axes.
Since it can measure distortion, fluctuation, and leakage of a weak magnetic field, it is ideal for applications such as magnetic metal flaw detection and metal foreign matter detection for an unspecified weak magnetic field. In addition, taking advantage of its ultra-low power consumption, it is the best match for 3-axis magnetic measurement in wearable and IoT devices that use small capacity batteries.

Key Features

  • Upward compatible with AK09940.
  • Utilizing the ultra-small package, it is possible to measure weak magnetic vectors at pinpoints.
  • The external trigger input function and serial interface specifications are useful for synchronous measurement of multiple sensors.

Applications

  •                                 Metal flaw detector, metal foreign matter detectior, wearable device, magnetic field mapping
                                

Specifications

Part Number
AK09940A
Power Supply Voltage (MIN.) [V]
1.7
Power Supply Voltage (MAX.) [V]
1.98
Magnetic Sensitivity [μT/LSB]
0.01
Measurement range [mT]
±1.2
Measurement Time [ms]
0.6 / 0.9 / 1.5 / 2.8
Noise (Power Mode) [nT rms]
70 / 60 / 50 / 40
Current Consumption (@100Hz ODR) [μA]
30 / 60 / 100 / 200
Current Consumption when measuring [mA]
0.8
Output pin
DRDY
Control Interface
I²C / 4-wire SPI
Operating Temperature [℃]

                                
Device Package

                                
Number of Pins

                                

Product Information

Part Status
Preview
Pb Free
Yes
Halogen Free
Yes
MSL

                                
Packaging
TAPE
JEDEC Standard Packaging
Not Compliant
Minimum Order Quantity [pcs.]

                                
Replacement P/N

                                

Block Diagram

Block Diagram