Asahi Kasei Microdevices Corporation, (AKM), has launched the AK7452, a 14-bit, high precision device with improved layout flexibility, adding to the growing lineup of magnetic type Zero Latency rotation angle sensor ICs.  With the addition of the AK7452 to AKM’s angle sensor lineup, AKM can support a wide range of applications, including various industrial equipment and motors.  The AK7452 integrates an advanced user calibration function, enabling it to correct angular errors caused by mounting misalignment, magnet characteristics, etc.  In addition, supported are Shaft-end detection and detection on an orthogonal side of the shaft (Off-Axis).

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.  The sensor IC can track up to 25,000 rpm via the architecture of the tracking servo system, with output delay time of 1.8 μs.  The AK7452 adapts a small and thin 16-pin TSSOP package.  The power supply voltage range is expanded to cover 3 to 5.5V.

Features

。Angle Error Correction Function

Sensor accuracy can be improved by correcting the angle error caused by mounting misalignment.  Offset, phase difference, and gain mismatch can be corrected by writing parameters into the internal EEPROM of the AK7452.

。Supports Off-Axis Detection

The AK7452 corresponds to detection on an orthogonal side of the shaft, (Off-Axis location).  A shaft through type motor system can be constructed with this Off-Axis arrangement.  This helps make the motor system thinner and contributes to making the hollow structure type.

Main Specifications 

 Si Monolithic Rotation Angle Sensor IC with Hall Element

Product Name	AK7452	AK7451	AK7405
Power Supply [V]	3.0 to 5.5	4.5 to 5.5
Temperatyre Range [°C]	-40 to 125		-40 to 150
Operating Magnetic Field Range [mT]	30 to 70
Resolution [bit]	14	12
Rotation Accuracy@Room Temperature [degree]	±0.5	±0.6
Rotation Accuraty@Total Temperature Range [degree]	±1.0	±1.5
Output Noise(p-p) [degree]	±0.044	±0.176
Delay Time [μs]	1.8
Rotation Tracking [rpm]	25,000	20,000
Consumption Current [mA]	20	15.7
ABZ Resolution Setting [ppr]	1 to 4096	1024, 512, 256, 128 and etc. 16 patterns in Total	1024, 512, 256, 128
UVW Pulse [ppr]	1 to 32	1 to 8	N/A
SPI Frequency [MHz]	8	2
Output Format	4-wire SPI / ABZ / UVW		4-wire SPI / ABZ
Package	TSSOP-16	SOP-16	SSOP-20
Package Size [mm]	5.0 x 6.4 x t1.07	9.9 x 6.0 x t1.75	7.2 x 7.8 x t1.725

source：http://www.akm.com/