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Tri-axis Magnetic Sensors

Ultra-compact package
Tri-axis Magnetic Smart Switch for various purposes

AK09973D

Wide measurement range and high resolution, ideal for use in combination with magnet

AK09973D is ideal for non-contact detection of relative distances, postures and angles with magnets using in combination with a magnet. Utilizing the magnetic threshold interrupt function and ultra-low power consumption, it is also suitable for battery-powered security monitoring devices.

AK09973D is packaged in 5-pin WL-CSP with 0.4 [mm] ball-pitch . Size is 1.18 × 0.78 x 0.55 [mm] and 2 pins for power supply, 2 pins for I2C communication, one Interupt output pin.

Tri-axis Magnetic Smart Switch for various purposes

Tri-axis Magnetic Smart Switch for various purposes

AK09973D
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Specifications Comparison

Tri-axis Magnetic Sensors
  Ultra-small
Tri-axis Magnetic Smart Switch		 Ultra-small
Tri-axis Magnetic Smart Switch		 Tri-axis Magnetic Smart Switch
Part Number AK09973D AK09970D AK09970N
Magnetic sensor technology Si Hall Si Hall Si Hall
Power supply (VDD) [V] 1.65 to 1.95 1.7 to 3.6 1.7 to 3.6
Magnetic sensitivity [μT/LSB] 1.1
(High sensitivity setting)		 1.1 1.1
Measurement range [mT] X,Y,Z ±36 X,Y,Z ±36 X,Y,Z ±36
Measuremet time [ms] 0.265
(Low power drive)		 0.23 0.23
Current consumption
@100Hz ODR
(Low power drive)		 [μA] 22
(Low power drive)		 27 27
Current consumption
when measuring		 [mA] 1.4 1.5 1.5
Output pin   Interrupt pin
(Open Drain)		 Interrupt pin
(Open Drain)		 Interrupt pin
(CMOS / Open Drain)
Max. ODR [Hz]   2000 2000
Interface   I2C
(Two selectable Slave addresses)		 I2C SPI / I2C
Package   5-pin WL-CSP 6-pin WL-CSP 16-pin QFN
Package Size [mm] 1.18 × 0.78 × 0.55 1.35 × 1.35  × 0.57 3.0 × 3.0 × 0.75
Status   NEW NRND NRND

Ultrahigh precision 3-axis Electronic Magnetometer

AK09940A

AK09940A is a digital output ultra-compact 3-axis electronic magnetometer that uses TMR magnetic sensor elements to achieve ultra-low noise performance.
The magnetic field vector is output as an 18-bit digital value for each of the X, Y, and Z axes.
Metal flaw or metal foreign object detection, as well, it might be able to be utilized in various fields magnetic detection has not been made.

Ultrahigh precision 3-axis Electronic Magnetometer

Ultrahigh precision
3-axis Electronic Magnetometer

AK09940A
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Specifications Comparison

Tri-axis Magnetic Sensors
　 Ultrahigh precision
3-axis Electronic Magnetometer		 Ultrahigh precision
3-axis Electronic Magnetometer
Part Number AK09940A AK09940
Magnetic sensor
technology		 TMR
Power supply (VDD) [V] 1.7 to 1.98
Magnetic sensitivity [μT/LSB] 0.01
Measurement range [mT] ±1.2
Measuremet time [ms] 0.35 0.6  0.9 1.5  2.8 0.6 0.9 1.5 2.8
Current consumption
@100Hz ODR
(Low power drive)		 [μA] 16 30 60 100 200 30 60 100 200
Noise [nT-rms]​ 120 70  60 50 40 70 60 50 40
Current consumption
when measuring		 [mA] 0.8
Output pin   DRDY
Max. ODR [Hz] 2500 400
Interface   I²C / 4-wire SPI
Package   11-pin ULGA
Package Size [mm] 1.6 × 1.6 × 0.58
Status   ES: Avialable
MP: 2023/Q2		 EOL

Selection Table

Part Number
 
Part
Status
 
Power 
Supply 
Voltage 
(MIN.)
[V]
 
Power 
Supply 
Voltage 
(MAX.)
[V]
 
Magnetic 
Sensitivity
[μT/LSB]
 
Measurement 
range
[mT]
 
Measurement 
Time 
[ms]
 
Noise 
(Power Mode) 
[nT rms]
 
Current 
Consumption 
(@100Hz ODR)
[μA]
 
Current 
Consumption 
when 
measuring
[mA]
 
Output pin
 
Control 
Interface
 
Max. ODR
[Hz]
 
Operating
Temperature
[℃]
 
Device
Package
 
Number
of Pins
▲
▼
▲
▼
▲
▼
▲
▼
▲
▼
▲
▼
▲
▼
▲
▼
▲
▼
▲
▼
▲
▼
▲
▼
▲
▼
▲
▼
▲
▼
▲
▼ 
AK09940A
 
MP
 
1.7
 
1.98
 
0.01
 
±1.2
 
0.35 / 0.6 / 0.9 / 1.5 / 2.8
 
120 / 70 / 60 / 50 / 40
 
16 / 30 / 60 / 100 / 200
 
0.8
 
DRDY
 
I²C / 4-wire SPI
 
2500
 
-30 to 85
 
ULGA
 
11
 
AK09973D
 
MP
 
1.65
 
1.95
 
1.1 (High sensitivity setting)
 
X, Y, Z ±36 (High sensitivity setting)
 
0.265 (Low power drive)
 

                                		
                            
                        
                            
                            
                                
                                    
22 (Low power drive)

                                		
                            
                        
                            
                            
                                
                                    
1.4

                                		
                            
                        
                            
                            
                                
                                    
Interrupt pin (Open Drain)

                                		
                            
                        
                            
                            
                                
                                    
I²C  (Two selectable Slave addresses)

                                		
                            
                        
                            
                            
                                
                                    

                                		
                            
                        
                            
                            
                                
                                    
-30 to 85

                                		
                            
                        
                            
                            
                                
                                    
WLCSP

                                		
                            
                        
                            
                            
                                
                                    
5