Angle Sensors

The AKM angle sensor is composed of hall elements with integrated circuit in single die.
This sensor enables the measurement of magnetic fields in parallel to the chip surface and can detect the absolute angle of a magnetic field over the full range between 0° and 360° with high angular accuracy and resolution.
This sensor is non-contact angle sensor which is suitable for consumer, industrial and automotive application, the simple composition which consists of small magnet and this sensor can be used.

Line Up

NEW AK7451
ABZ/UVW phase adjustable rotary angle sensor

The AK7451 is able to output up to eight-pole UVW phase that improves versatility, realizing rotor position detection in DC brushless motor-driven operation without Hall ICs installation. The expansion of ABZ phase output resolution setting from 4 to 16 types enhances motor control usability. These key features enable to use for more various types of industrial equipment motors than conventional products.
● Easy installation of a contactless rotary sensor with diametrically magnetized mono-pole magnets
● Supporting High-speed rotational operation
● Programmable ABZ/UVW phase output


AK7401, AK7405
12bit rotary angle sensor

The automotive qualified AK740X product family comprises the 12bit angle sensor AK7401 with serial / PWM interface as well as the high speed 12bit angle sensor AK7405 with serial / ABZ interface.

AK7401 is suitable for the rotational position sensing application, for example steering angle measurement, valve position sensing and so on.
AK7405 is suitable for high rotational application just as motor control.

Part# Data
Description-Digest Oper.
Package I/F Power

V bit deg
AK7401Yes12bit Rotary Angle Sensor-40 to 1508-SOPSerial/PWM4.0 to 5.512±0.95
AK7405YesHigh Speed 12bit Rotary Angle Sensor-40 to 15020-SSOPSerial/ABZ4.5 to 5.512±1.00
ABZ/UVW phase adjustable 12bit Rotary Angle Sensor -40 to 12516-SOPSerial/ ABZ, UVW4.5 to 5.512±1.00
EM324210bit Angle Sensor-30 to 856-SOPAnalog2.7 to 3.310

Technical Resources

 ■ Design of magnet for angle sensors

 ■ Effect of magnet desplacement


■ Automotive
Pedal position sensor, Steering angle sensor, Valve position, Wiper motor control
Sensor, Headlamp position control, Seat position motor, Side mirror control,
Electric power steering motor control, Fuel level sensor, Main/Sub motor control

■ Consumer
Compact absolute rotary encoder, Compact input device (mode selector, control volume)
Substitute for potentiometer, Rotary switch

 ■ Automotive

         Pedal position sensor, Steering angle sensor, Valve position  

         Sensor,Headlamp position control, seat position motor, Side    

         mirror , Electric power steering  , Fuel level sensor , Main / 

         Sub motor control

 ■ Consumer

     Compact absolute rotary encoder ,Compact input device (mode selector, control volume) 
     Substitute for potentiometer
     Rotary switch


Under construction

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