Angle Sensors

The AKM angle sensor enables the measurement of magnetic fields in parallel to the chip surface and can detect the absolute angle of a magnetic field.

Rotary Encoders

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 degrees 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.

14bit rotation angle sensor with support for Off-Axis configuration

AK7455

AK7455 has stray magnetic fields (magnetic field noise) calibration function that previous magnetic sensors cannot support. This function corrects angle errors due to stray magnetic field and reduces temperature drift.

More flexibility in Off-Axis configuration than before, the sensor position in the motor system can be flexibly considered.

14bit rotation angle sensor with support for Off-Axis configuration

AK7454

An angular accuracy of ±0.1deg(typ.) can be achieved, even in the Off-Axis configuration

The AK7454 is an absolute magnetic rotation angle sensor IC in small package with support for Off-Axis configuration.

This configuration enhances the design flexibility and helps to make the motor system thinner and allows for a hollow-shaft design.

By built-in angle error calibration function to reduce 1st to 4th order error components, angular accuracy ±0.1deg(typ.) can be realized in both Shaft-End and Off-Axis configurations.

14-bit angular error calibratable rotary angle sensor

AK7452

The AK7452 integrates an advanced user calibration function, enabling it to correct angular errors caused by mounting misalignment, magnet characteristics, etc.

The capability of ABZ phase output resolution any setting from 1 to 4096 types enhances motor control usability even in DC brushless motors or stepping motors.

Supporting programmable ABZ/UVW output

A zero point setting can set any angular position to 0 degree.

Rotation direction, resolution of ABZ output, (1 to 4096), and number of pulses of UVW output (1 to 32), can be programmed to the internal EEPROM.

12-bit rotary angle sensor

AK7401, AK7405 / AK7405A

The AK740X products family comprises, there is a lineup of 12-bit rotary angle sensor AK7401 with serial / PWM output and 12-bit high-speed rotary angle sensor AK7405 / AK7405A with serial / ABZ output.

The AK7401 and AK7405A are automotive compatible products.

AK7405 / AK7405A are suitable for high speed rotation angle detection for motor control applications.

Lineup

Angle Sensors

Part Number
Part
Status
Description 
Digest
Power Supply 
Voltage (MIN.)
[V]
Power Supply 
Voltage (TYP.)
[V]
Power Supply 
Voltage (MAX.)
[V]
Interface
Angle resolution
[bit]
Angle Error Calibration
Other
Operating
Temperature
[℃]
Device
Package
Number
of Pins
AK7452
MP
High accuracy absolute Magnetic Rotary Angle Sensor
3

                                
5.5
Serial, ABZ, UVW
14
Available *Shaft-End

                                
-40 to 125
TSSOP
16
AK7454
NEW
High accuracy angle sensor for Shaft-End and Off-Axis configuration
3

                                
5.5
Serial, ABZ, UVW
14
Available *Off-Axis, Shaft-End

                                
-40 to 125
HVQFN
24
AK7451
MP
ABZ/UVW phase adjustable 12bit Rotary Angle Sensor
4.5

                                
5.5
Serial, ABZ, UVW
12

                                

                                
-40 to 125
SOP
16
AK7405
MP
High Speed 12bit Rotary Angle Sensor
4.5

                                
5.5
Serial, ABZ
12

                                
Automotive grade
-40 to 150
SSOP
20
AK7455
ES
High accuracy angle sensor for Shaft-End and Off-Axis configuration
3

                                
5.5
Serial, ABZ, UVW
14
Available *Off-Axis, Shaft-End

                                
-40 to 125
QFN
24
AK7401
MP
12-bit Rotary Angle Sensor
4

                                
5.5
Serial, PWM
12

                                
Automotive grade
-40 to 150
SOP
8
EM3242
MP
10bit Angle Sensor
2.7

                                
3.3

                                
10

                                

                                
-30 to 85
SOP
6

Magnet Selection Guideline for Shaft-End configuration

Application Note of Angle Sensors

Technical Resources

AKM provides the guideline for deciding on the optimalmagnet and layout for customers in need, "What kind of magnet should i choose for the magnetic angle sensor?"