Renesas RAA2P3226

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.

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

Applications

• Optical encoder replacement
• Magnetic encoder replacement
• Linear motor
• Robotics
• Medical applications
• Industrial automation

Block diagram

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