The COA34-01 single-turn absolute optical encoder is a high-precision optical encoder designed to provide outstanding performance in demanding applications. With a resolution of up to 25 bits and an accuracy of ±5", it ensures accurate and reliable position measurements.

The encoder has a +5V and +15V power supply, offering flexibility for integration into various systems. Its serial output can be configured as SSI2 or SSI, ensuring reliable data transmission.

With an operating speed of 120 rpm, the COA34-01 is suitable for a variety of applications requiring fast movements. It can withstand an axial load of 0.1 mm and a radial load of 0.05 mm, ensuring optimum stability.

The optical encoder is designed to operate over a wide temperature range, from -45°C to +105°C, making it suitable for harsh environments. Its IP64 rating ensures protection against dust and moisture.

The COA34-01 is designed with a hollow shaft for easy installation. It also has robust mounting features to ensure a secure installation.

Download the data sheet


up to 25 bits
± 5’
Power supply
+ 5V, + 15V
Serial output
Operating speed
120 rpm
Load on shaft (axial and radial)
0,1 mm axial and 0,05 mm radial
Max. temperature range
-45°C to +105°C
IP maxi


Optical encoders with Codechamp Optical Encoder technology offer many advantages.

Using a combination of advanced optical and digital technology, they provide accurate conversion of rotary motion into digital signals.

Codechamp optical encoders incorporate state-of-the-art electronics directly into the housing, simplifying installation and integration into existing systems. Thanks to their non-magnetic construction, our optical encoders are insensitive to magnetic interference, ensuring accurate and reliable measurement in critical environments. Designed to fit different mechanical configurations, they also offer flexibility to meet the specific needs of each application.

With a resolution of up to 26 bits in single-turn operation, our optical encoders offer exceptional angular accuracy, enabling fine detection of rotary motion. Thanks to their advanced design and precise measurement technology, our optical encoders offer excellent angular accuracy.

Our optical encoders are designed to operate reliably in extreme environments, withstanding high or low temperatures, shock, vibration and other harsh conditions.

Known for their exceptional reliability, our optical encoders offer consistent performance even under demanding operating conditions.

Thanks to their compact design, they help to reduce the overall weight of systems, which is crucial for applications requiring weight optimisation.

On request, we offer full redundancy for our optical encoders, ensuring increased safety and continuity of operation in critical applications.

When you choose our high-quality optical encoders, you benefit from advanced technology that offers exceptional accuracy, reliability and adaptability to meet the requirements of your application, whether in the aerospace, defence, industrial or automotive sectors.