AR25-AS02 25-Bit Single-Turn Absolute Encoder IC With Standard Protocols

The AR25-AS02 is a 25-bit single-turn absolute encoder with standard protocols, supporting through-hole solutions up to 30 mm in diameter. It features user-programmable resolutions from 15-bit to 25-bit single-turn absolute outputs.

Additionally, the AR25-AS02 provides differential analog sine/cosine or digital incremental ABIUVW signals with configurable CPRs and pole-pairs. The encoder includes a state-of-the-art Auto-Calibration feature that simplifies integration into end systems.

• Miniature surface-mount QFN package: 6 mm (L) × 6 mm (W) × 1.05 mm (H)
• User-programmable absolute resolution: 15 bits to 25 bits
• User-programmable incremental output (ABI) resolutions ranging from 1 CPR to 220 CPRs
• User-programmable commutation signals (UVW), ranging from 1 to 32 pole-pairs
• High-temperature range of -40°C to 125°C suitable for most industrial operations
• Dual-mode operating voltages of 3.3V and 5V, enabling handheld and portable device applications
• Multi-turn integration: EHMT, gear, or battery backup
• Optical radius (ROP) flexibility: Blind-hollow or through-shaft applications
• Built-in line transceiver for protocol with selectable drivability strength
• Auto-accuracy calibration with a constant speed that is one click away
• Selectable communication protocols: RS485 (2.5/5/10 Mb/s), ESL (2.5/5/10 Mb/s), SSI 2-wire (up to 10 MHz), SPI 4-wire (up to 10 MHz), BiSS-C (up to 10 MHz)
• External memory support up to 128 Kb
• Built-in temperature sensor

• Robotic automation and engineering
• Factory automation and drone
• Medical and dentistry devices and equipment
• High-accuracy portable and handheld devices
• Miniature motor, servo motor, and linear actuator
• Through-shaft motor, gear motor, and speed reducer