AS5147P High Speed Position Sensor
14-bit on-axis magnetic rotary position sensor with 12-bit binary incremental pulse count
Features
- DAEC™ dynamic angle error compensation
- Immune to external stray magnetic field
- 14-bit core resolution
- Maximum speed up to 28000 rpm
- Developed per ISO 26262 SEooC
Benefits
- Eliminates angle measurement lag at high RPMs
- Lower system costs (no shielding)
- High resolution for motor and position control
- No programmer needed (via SPI command)
- Enables ASIL-x system safety level compliance
Product parameters
Resolution [bit] | 14 or 12 |
---|---|
Interface | SPI |
Output | SPI, ABI, UVW, PWM |
Max. Speed [rpm] | 28000 |
Overvoltage Protection | |
Redundant | |
Supply Voltage [V] | 3.3 or 5.0 |
Temperature Range [°C] | -40 to +150 |
Package | TSSOP-14 |
Automotive Qualified | |
Longevity Program | January 2031 |
General description
The AS5147P is a high-resolution rotary position sensor for high speed (up to 28krpm) angle measurement over a full 360 degree range. This new position sensor is equipped with a revolutionary integrated dynamic angle error compensation (DAEC™) with almost 0 latency.
The robust design of the device suppresses the influence of any homogenous external stray magnetic field. A standard 4-wire SPI serial interface allows a host microcontroller to read 14-bit absolute angle position data from the AS5147P and to program non-volatile settings without a dedicated programmer.
Incremental movements are indicated on a set of ABI signals with a maximum resolution of 4096 steps / 1024 pulses per revolution. The product is defined as SEooC (Safety Element out of Context) according ISO26262 including FMEDA, safety manual and third party qualification.
With two decades of magnetic sensor system know-how, we have broad experience in selecting the most suitable magnets. ams experts recommend the following magnet suppliers.

This product suits for the following applications:
- Safety-critical automotive systems (EPS, brake, etc.)
- Resolver replacement
- Discrete hall commutation feedback replacement
- Servo motor position control
- BLDC/PMSM motor commutation (pumps, DCT, starter, alternator, wiper, etc.)

Tools
Title | Category | Headline | Buy |
---|---|---|---|
AS5x47SocketBoard | Application Board | Socket Board for AS5x47 | |
AS5x47PMotorBoard | Application Board | Motor Board for AS5x47P | |
AS5147PAdapterBoard | Application Board | Adapter Board for AS5147P | |
RMH05-DK-XX | Accessories | Rotary Magnetic Holder | |
SD4Y-PP | Accessories | Production Programmer SD4Y | |
USBI&PBox | Accessories | USB I&P Box for I2C/SPI |
Technical documents
Type | Description | Language | ||
---|---|---|---|---|
Datasheet | Document version 1-02 | English | ||
Application Note | Dynamic Angle Error Compensation Description | English | ||
Application Note | Zero Position Programming in Motor Control Application | English | ||
Application Note | Redundancy Bit | English | ||
Application Note | Communication Interfaces | English | ||
Application Note | AN5000 Magnet Selection Guide v1-04 | English | ||
Application Note | Tape & Reel Packing Information | English | ||
Application Note | USB Interface & Programming Box | English |
Environmental documents
Type | Description | Language | ||
---|---|---|---|---|
Material Declaration Form | MDF_500430003_AS5147P-HTST | English | ||
Material Declaration Form | MDF_500430003_AS5147P-HTSM | English | ||
RoHS Certificate | RoHS Certificate AS5147P | English |
Notifications
Type | Description | Language | ||
---|---|---|---|---|
Product Change Notification | PCN38-2018 (AS50xx, AS51xx, AS52xx, AS54xx, AS8xxx) | English |
Other information
Type | Description | Language | ||
---|---|---|---|---|
Block Diagram | AS5147P Block Diagram | English | ||
Factsheet | Position Sensor Example for Motor Position and Commutation using AS5147P | English | ||
Factsheet | High-Speed, High-Resolution Rotary Position Sensor | English | ||
Factsheet | 高速高分辨率旋转位置传感器 | Chinese | ||
Factsheet | Contactless Magnetic Position Sensing for Motor Control | English | ||
Factsheet | Position Sensors Family Overview | English | ||
Image | ASXXXX On-Axis TSSOP14 Magnetic Field Lines |