High accuracy angle sensor for Shaft-End and Off-Axis configuration

High accuracy angle sensor for Shaft-End and Off-Axis configuration



The AK7454 is a 14bit angle sensor which detects the angular position of a magnetic field parallel to the IC surface and it can track up to 25,000rpm. The contactless angle sensor can be constructed simply with small magnet and this sensor. The AK7454 is available in a small and thin QFN24 package. The supply voltage range is 3.0 to 5.5V.
Angle error calibration function
The AK7454 has an angle error calibration function. High accuracy calibration can be performed with measurement data of 16 points or more in a single rotation. By writing the calibration parameters to the internal EEPROM, high angular accuracy can be realized. 

Supports Off-Axis configuration
In addition to Shaft-End, the AK7454 corresponds to Off-Axis configuration. This helps to make the motor system thinner and allows for a hollow-shaft design. 

Various parameter setting with built-in EEPROM
With built-in EEPROM, it is possible to program zero point setting that can set any angular position to 0degree, rotation direction, ABZ output resolution(arbitrary value from 1 to 4096ppr), UVW pole number(arbitrary value from 1 to 32pole pairs).


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


Part Number AK7454
Description Digest High accuracy angle sensor for Shaft-End and Off-Axis configuration
Power Supply Voltage (MIN.) [V] 3
Power Supply Voltage (TYP.) [V]
Power Supply Voltage (MAX.) [V] 5.5
Interface Serial, ABZ, UVW
Angle resolution [bit] 14
Angle Error Calibration Available *Off-Axis, Shaft-End
Operating Temperature [℃] -40 to 125
Device Package HVQFN
Number of Pins 24

Product Information

Part Status NEW
Pb Free Yes
Halogen Free Yes
Packaging TAPE
JEDEC Standard Packaging Compliant
Minimum Order Quantity [pcs.] 1000
Recommended Order Quantity 1 [pcs.] 12000
Recommended Order Quantity 2 [pcs.] 2000
Standard Packing Quantity [pcs.] 1000
Replacement P/N

Block Diagram

AK7454 Block Diagram