AS5070 - High Resolution Position Sensor
High-resolution on-axis magnetic angular position sensor
Features
- 12-bit resolution @90° minimum arc
- Low output noise, low inherent INL
- Magnetic stray field immunity
- Diagnostics
Benefits
- Resolve small angular excursion with high accuracy
- Accurate angle measurement
- Higher durability and lower system costs (no shield needed)
- Enabler for safety critical applications
Product parameters
| Resolution [bit] | 14 or 12 |
|---|---|
| Interface | UART |
| Output | Analog; PWM; SENT |
| Max. Speed [rpm] | |
| Overvoltage Protection | Yes |
| Redundant | No |
| Supply Voltage [V] | 5.0 |
| Temperature Range [°C] | -40 to +150 |
| Package | SOIC8 |
| Automotive Qualified | No |
| Longevity Program | January 2031 |
General description
The AS5070 is a high-resolution angular position sensor for precise absolute angle measurement. The AS5070 is available with an analog output interface (AS5070A) or a digital output interface (AS5070B). The latter can be programmed as a PWM or a SENT-compliant output interface.
Based on a Hall sensor technology, this device measures the orthogonal component of the flux density (Bz) over a full-turn rotation and compensates for external stray magnetic fields with a robust architecture based on a 14-bit sensor array and analog front-end (AFE). A sub-range can be programmed to achieve the best resolution for the application. To measure the angle, only a simple two-pole magnet rotating over the center of the package is required. The magnet may be placed above or below the device. The absolute angle measurement provides an instant indication of the magnet’s angular position. The AS5070 operates at a supply voltage of 5V, and the supply and output pins are protected against overvoltage up to +20V. In addition the supply pins are protected against reverse polarity up to –20V. 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:
- Rotary button angle sensors
- Liquid-level measurement systems
- Contactless potentiometers
Tools
| Title | Category | Headline | Buy |
|---|---|---|---|
| RMH05-DK-XX | Accessories | Rotary Magnetic Holder | |
| SD4Y-PP | Accessories | Production Programmer SD4Y | |
| AS5070SocketBoard | Application Board | Socket Board for AS5070 | |
| AS5xxx-EK-USB-PB | Accessories | Programming Board for AS5xxx | |
| AS5070AdapterBoard | Application Board | Adapter Board for AS5070 |
Technical documents
| Type | Description | Language | ||
|---|---|---|---|---|
| Datasheet | AS5070 Datasheet v1-00 | English | ||
| Product Brief | AS5070 Product Brief | English |
Other information
| Type | Description | Language | ||
|---|---|---|---|---|
| Block Diagram | AS5070 Block Diagram | English | ||
| Factsheet | Position Sensors Family Overview | English | ||
| Image | ASXXXX On-Axis SOIC8 Magnetic Field Lines |
Related boards
Rotary Magnetic Holder
RMH05-DK-XX
This Rotary Magnetic Holder (RMH) is designed to use it on our magnetic rotary position sensor adapter boards for easy evaluation. It allows fast prototyping and quick measurements during development. For more details please download the document.
Production Programmer SD4Y
SD4Y-PP
The SD4Y Programmer is an in-system programming tool which is applicable for production environment. The SD4Y programmer supports: digital writing and reading; OTP programming and analog read back for the OTP verification. Additional the SD4Y programmer can use the AMS programming boards.
The GUI and the Labview source code are available. Additional code samples for C; C++ and C# are available.
Download latest software (UProg_SW_package_2v0.zip, 264MB)
The GUI and the Labview source code are available. Additional code samples for C; C++ and C# are available.
Download latest software (UProg_SW_package_2v0.zip, 264MB)
Socket Board for AS5070
AS5070SocketBoard
The AS5070-SO_EK_SB socket board is used for quick programming of the AS5070A and AS5070B magnetic rotary position sensors without soldering due to its ZIF socket. This board can be used in combination with the AS5xxx-EK-USB-PB UART Programming Board and the provided LabVIEW evaluation software.
The PCB offers direct connecting option to the AS5xxx-EK-USB-PB UART Programmer with the 4-pin single-row connector on the left side. A ZIF Open-Top-Socket for SOIC8 packages is mounted in the middle. Pin 1 of the IC is indicated by a small white dot on the PCB.
All passive components needed for proper operation are included on bottom side the PCB.
Programming Board for AS5xxx
AS5xxx-EK-USB-PB
The AS5xxx Programming Board is used for quick programming the ams magnetic angle position sensor with 1 wire UART interface. This board can be used in combination with the socket boards and adapter boards of the AS5161/62 and AS5261/62, which provides the chip with the adequate OTP programming data.
Adapter Board for AS5070
AS5070AdapterBoard
The AS5070 adapter board is a small PCB allowing simple and quick testing or evaluation of the AS5070 magnetic position sensor without the need to design and manufacture an own PCB.
The PCB can be connected to an external microcontroller or to the AS5xxx-EK-USB-PB UART Programmer which can be used in combination with the AS5070 Software GUI provided by ams-OSRAM AG.
JP1 is populated with a 1x4 female pin header it is required for the power supply (VCC and GND) and output (OUT). This connector directly fits to the UART Programmer.
All necessary external components C1 (VDD3V3-GND) and C2 (VDD-GND) are already populated to the PCB.
Related products
AS5171 High Resolution Position Sensor
AS5171
The AS5171 is a high-resolution angular position sensor for precise absolute angle measurement. The AS5171 is available with an analog output interface (AS5171A) or a digital output interface (AS5171B).
The AS5171A and AS5171B are available in a SIP package (system in package). The package has integrated the AS5171 sensor die together with the decoupling capacitors necessary to pass system level ESD and EMC requirements. No additional components and PCB on the sensor side is needed. The product is defined as SEooC (Safety Element out of Context) according to ISO26262.
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.
The AS5171A and AS5171B are available in a SIP package (system in package). The package has integrated the AS5171 sensor die together with the decoupling capacitors necessary to pass system level ESD and EMC requirements. No additional components and PCB on the sensor side is needed. The product is defined as SEooC (Safety Element out of Context) according to ISO26262.
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.
AS5270 Magnetic Angular Position Sensor
AS5270
The AS5270 is a dual-die, high-resolution angular position sensor for precise absolute angle measurement. The AS5270 is available with an analog output interface (AS5270A) or a digital output interface (AS5270B). The latter can be programmed as a PWM or a SENT-compliant output interface.
Based on a Hall sensor technology, this device measures the orthogonal component of the flux density (Bz) over a full turn rotation and compensates for external stray magnetic fields with a robust architecture based on a 14-bit sensor array and analog front-end (AFE). A sub-range can be programmed to achieve the best resolution for the application. To measure the angle, only a simple two-pole magnet rotating over the center of the package is required. The magnet may be placed above or below the device. The absolute angle measurement provides an instant indication of the magnet’s angular position. The AS5270 operates at a supply voltage of 5V, and the supply and output pins are protected against overvoltage up to +20V. In addition the supply pins are protected against reverse polarity up to -20V.
The AS5270A is a stacked dual-chip for high-reliability redundant operation. In this device, two chips are aligned and encapsulated in the same package. Separate pins are provided for each chip, so no electrical fault in the device can affect both chips.
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.
Based on a Hall sensor technology, this device measures the orthogonal component of the flux density (Bz) over a full turn rotation and compensates for external stray magnetic fields with a robust architecture based on a 14-bit sensor array and analog front-end (AFE). A sub-range can be programmed to achieve the best resolution for the application. To measure the angle, only a simple two-pole magnet rotating over the center of the package is required. The magnet may be placed above or below the device. The absolute angle measurement provides an instant indication of the magnet’s angular position. The AS5270 operates at a supply voltage of 5V, and the supply and output pins are protected against overvoltage up to +20V. In addition the supply pins are protected against reverse polarity up to -20V.
The AS5270A is a stacked dual-chip for high-reliability redundant operation. In this device, two chips are aligned and encapsulated in the same package. Separate pins are provided for each chip, so no electrical fault in the device can affect both chips.
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.