Features
- Voltage supply: 3.3V±0.3V or 5.0V±0.5V
- Qualified for industrial applications operating from -40°C to +125°C
- Output interfaces: high-speed UART, ABI, step/dir, and I2C
- Rotational speed: up to 600K rpm, with less than 100ns propagation delay
- High-accuracy sensor with up to 19-bit resolution and 15-bit accuracy (integrated vernier)
- True power-on position information with ABI and step/dir
- On-axis and off-axis implementations support
- Automatic gain control (AGC) to compensate for air-gap variations
- Autocalibration and 16-point linearization for enhanced accuracy
- On-chip failure diagnostics
- External auxiliary sensor input
- Fully customizable sensing element design using the Renesas Inductive Position Sensor Coil Optimizer tool
Description
The RAA2P3226 is a magnet-free, inductive position sensor IC designed for absolute rotary, linear, or arc position sensing in industrial applications. It operates on the principle of eddy currents, detecting the position of a simple metallic target that is moving above a set of coils, comprising one transmitter coil and two sets of receiver coils. Equipped with dual receiver sets, the RAA2P3226 is ideally suited for high-performance sensor solutions, delivering up to 19-bit resolution and 15-bit accuracy.
Inductive sensing technology offers significant advantages over magnetic technology, including greater flexibility, easier system integration, and enhanced performance, reliability, and cost efficiency. As a result, it is becoming the preferred choice for a wide range of industrial applications.
Parameters
| Attributes | Value |
|---|---|
| Function | Position Sensor |
| Resolution (bits) | 19 |
| Supply Voltage (V) | 3.3 - 5 |
| Interface | I2C, ABI, Step/Dir, UART |
| Temp. Range (°C) | -40 to 125°C |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| TSSOP | 5.0 x 4.4 x 1.0 | 16 | 0.65 |
Application Block Diagrams
 | Turntable System This turntable system features a low-power MCU and RIAA preamp for precise motor and audio control. |
 | Mini BLDC Servo BLDC servo drives up to 75W motors with precise, efficient integrated control. |
Additional Applications
- Optical encoder replacement
- Magnetic encoder replacement
- Linear motor
- Robotics
- Medical applications
- Industrial automation