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.

14-bit rotation angle sensor with an anomaly detection function

AK7455

The AK7455 is a 14-bit absolute rotation angle sensor with built-in angular error calibration and supports for Off-Axis configuration.

A function to detect magnetic fields other than the sensor magnet as an anomaly magnetic field has been added, contributing to the detection of system anomalies and malfunctions.

In addition to the conventional magnetic field detection in the X-Y plane, the magnetic field detection in the X-Z and Y-Z planes is now possible in the Off-Axis configuration, increasing the flexibility of sensor placement in motor systems.

The bandwidth setting of the angle calculation circuit has been extended compared to that of the conventional product to improve the response of the motor acceleration and deceleration.

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
AK7401
MP
12-bit Rotary Angle Sensor
4

                                
5.5
Serial , PWM
12

                                
Automotive grade
-40 to 150
SOP
8
AK7405
MP
High Speed 12-bit Rotary Angle Sensor
4.5

                                
5.5
Serial , ABZ
12

                                
Automotive grade
-40 to 150
SSOP
20
AK7451
MP
ABZ / UVW phase adjustable 12-bit Rotary Angle Sensor
4.5

                                
5.5
Serial, ABZ, UVW
12

                                

                                
-40 to 125
SOP
16
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
MP
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
AK7455
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
EM3242
MP
10-bit Angle Sensor
2.7

                                
3.3

                                
10

                                

                                
-30 to 85
SOP
6

Application Note for Off-Axis configuration

Application Note of Angle Sensors

Technical Resources

We have prepared a new technical document of the angle sensor that supports "Off-Axis configuration", which is ideal for double axis motors and hollow shaft motors.

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?"