Orbis™ absolute rotary encoder


Orbis™ absolute rotary encoder

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OrbisTM is an absolute, through-hole rotary encoder suitable for applications where a typical OnAxis encoder cannot be mounted at the end of the rotating shaft due to space constraints.


The encoder comprises a diametrically magnetized permanent magnet ring and a printed circuit board. Geometric arrangement of 8 RLS’ proprietary Hall sensors on a PCB enables generation of one period of sine and cosine signals per mechanical magnet revolution. Moreover, it also enables cancellation of third harmonic component that becomes non-negligible at low magnet ride height.


An adaptive filtering function ensures high resolution at low rotation speeds and low angle phase delay at high rotation speeds. OrbisTM also features an additional built-in self-calibration algorithm that improves encoder’s accuracy after installation.


OrbisTM through-hole measuring principle allows customisation, with various board and magnet sizes to suit your application.

All output types
Reading type Axial reading
Resolution 14 bit
Maximum speed 10,000 rpm
Accuracy ±0.2° (optimal installation)
Accuracy thermal drift ±0.01° / °C
Repeatability < ±2 LSB
All output types
Supply voltage 4 V to 6 V 
Set-up time 10 ms
Power consumption 65 mA typically, 70 mA max.
Output load   PWM, SPI  Max. ±20 mA at 3.3 V
  RS422 120 mA short term, 60 mA limited
ESD protection HBM, Class 2, max. ±2 kV (as per Mil-Std 883 Method 3015.7)
All output types
Available magnet size OD: 19 mm, ID: 12 mm, thickness: 3 mm 
Available adapter sizes (inner diameter) 6 mm, 8 mm, 10 mm
Encoder outer diameter 45 mm 
Encoder hole diameter 13 mm 
Mass Module:SSI, BiSS, Async. ser.: 5.6 g
SPI, PWM: 5.5 g 

Magnet holders:
10 mm: 4.4 g
8 mm: 5.0 g
6 mm: 5.5 g  

Magnet: 3.8 g 
All output types
Operating temperature

0 °C to +85 °C 


  • True absolute encoder
  • 14 bit resolution
  • 8 proprietary Hall sensor ASICs
  • Through-hole design enables its mounting anywhere along the shaft 
  • Self-calibration after assembly
  • No magnetic hysteresis
  • Built-in self-diagnostics
  • Status LED
  • SPI, SSI, BiSS-C, PWM, and asynchronous serial communication

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Delivery time up to: 14 working days

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Availability: In stock

More than 55 pcs or need technical assistance? Contact for quote.