IC optical encoders
Aura®
Superior resolution, seamless integration.
High-Resolution Performance
Engineered for high-performance motion control, the Aura series delivers 18 to 22-bit resolution with an accuracy of up to ±0.005° for rotary scales and ±2 μm for linear applications. Utilizing PurePrecision™ optics and short-wavelength LEDs, it achieves exceptional repeatability and minimal latency (BiSS-C), providing the reliable, high-bandwidth feedback required for surgical robots and semiconductor manufacturing.
Simplified Integration
Aura simplifies the most complex part of installation with its built-in eccentricity compensation algorithm. This feature solves for angular errors caused by off-center scale mounting and bearing runout, eliminating the need for a second averaging encoder. Combined with wide alignment tolerances, it ensures high productivity and a faster time-to-market for demanding OEM applications.
Overview
- Absolute position feedback
- Small, low power SMT package
- High resolution and accuracy
- High run-speed
- Wide alignment tolerances
- Scale eccentricity compensation
- Low communication latency
- Comprehensive connectivity
Specifications
| Linear | Rotary | |
|---|---|---|
| Dimensions | 9.0 x 7.0 x 1.1 mm | 9.0 x 7.0 x 1.1 mm |
| Interfaces | BiSS-C, SSI, SPI, ABZ | BiSS-C, SSI, SPI, ABZ |
| Resolution* | ± 12.5 to 200 nm | 18-22 bit* |
| Latency | < 5 μsec (BiSS-C) < 5 μsec (SPI) < 30 μsec (SSI) | < 5 μsec (BiSS-C) < 5 μsec (SPI) < 30 μsec (SSI) |
| Accuracy** | ± 2 μm | ± 0.005° |
| Repeatability | 1 LSB | 1 LSB |
| Speed | 50 m/s | 83,721 rpm (with 18 mm scale) |
| Input Voltage | 5 VDC ± 0.5 | 5 VDC ± 0.5 |
| Supply Current | 45 mA, unterminated outputs | 45 mA, unterminated outputs |
| Operating Temperature | -40 to 85° C | -40 to 85° C |
| Weight | 1.5 g | 1.5 g |
| Standard Scales*** | 9 to 195 mm | 18 to 63.5 mm OD |
** Accuracy is specified using a glass scale with OD 51.8 mm (Rotary) and 80 mm measurable length (Linear).
*** Custom rotary and linear glass scales available – contact your local representative for more information.
