AS5147 Rotary Sensor
14-bit on-axis magnetic rotary position sensor with 11-bit binary incremental pulse count
Features
- DAEC™ dynamic angle error compensation
- 14-bit core resolution
- Independent output interfaces: SPI, ABI, UVW, PWM
- Zero position, configuration programmable
- Self-diagnostics
- Immune to external stray field
Benefits
- Easy to use – saving costs on DSP
- Good resolution for motor and position control
- Versatile choice of the interface
- No programmer needed (via SPI command)
- Supports safety challenging applications
- Lower system costs (no shielding)
Product parameters
Resolution [bit] | 14 or 11 |
---|---|
Interface | SPI |
Output | ABI, UVW, PWM |
Max. Speed [rpm] | 14500 |
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 AS5147 is a high-resolution rotary position sensor for fast absolute 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 AS5147 and to program non-volatile settings without a dedicated programmer. The resolution of the ABI signal is programmable to 2048 steps / 512 pulses per revolution or 1024 steps / 256 pulses per revolution. The AS5147 has also a programmable UVW output and supports embedded self-diagnostics features.
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:
- Electric power steering (EPS)
- Transmission (gearbox, actuator)
- Pump
- Brake (actuator)
- Starter and alternator

Tools
Title | Category | Headline | Buy |
---|---|---|---|
AS5x47SocketBoard | Application Board | Socket Board for AS5x47 | |
AS5x47DEvalKit | Application Board | Evaluation Kit for AS5x47D | |
AS5x47PMotorBoard | Application Board | Motor Board for AS5x47P | |
AS5147AdapterBoard | Application Board | Adapter Board for AS5147 | |
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 | AS5147 Datasheet version 3-00 | 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_193570003_AS5147-HTST | English | ||
Material Declaration Form | MDF_193570003_AS5147-HTSM | English | ||
RoHS Certificate | RoHS Certificate AS5147 | English |
Notifications
Type | Description | Language | ||
---|---|---|---|---|
Product Change Notification | PCN38-2018 (AS50xx, AS51xx, AS52xx, AS54xx, AS8xxx) | English |
Other information
Type | Description | Language | ||
---|---|---|---|---|
Block Diagram | AS5147 Block Diagram | English | ||
Factsheet | DAEC™ Dynamic Angle Error Compensation | English | ||
Factsheet | DAEC™ 动态角度误差补偿 | Chinese | ||
Factsheet | Contactless Magnetic Position Sensing for Motor Control | English | ||
Factsheet | Position Sensors Family Overview | English | ||
Image | ASXXXX On-Axis TSSOP14 Magnetic Field Lines |