Ultra-Precision 17-Bit Absolute Encoder

Currently Viewing:

The Broadcom AEAT-9000 series are high resolution single turn optical absolute encoders. They are designed to allow design engineers to achieve superior positioning performance in terms of speed and accuracy performance. The modular package enables the encoder to be directly integrated to the motor unlike conventional encoders. As a result design engineers can expect cost savings and better performance of the overall system.

The AEAT-9000 series addresses key motor qualities such as position accuracy, speed stability, and bandwidth which determine command-signal response, disturbance rejection capability, power loss, size, and quietness. They are capable of the industry’s best accuracy for an absolute encoder.

The AEAT-9000 is a modular absolute encoder that consists of a read head module and a high-precision code disc. The modular design allows for better flexibility to system designers to easily design-in the encoder feedback system.


  • 17-bit absolute single turn output (131072 absolute positions over 360°)
  • 2 channel true differential Sine/Cosine outputs with 2048 cycles per revolution
  • 2048 CPR A/B channel incremental analog output
  • Interface output will be SSI (2wire SSI / 3wire SSI) with RS485 line transceiver or single ended option
  • On-chip interpolation and code correction compensate for mounting tolerance
  • Selectable direction for Up/Down position counter
  • Electrical alignment output for tilt and locate
  • Built-in monitor track for monitoring of LED light level
  • Error output for LED degradation
  • -40 to 115°C operating temperature


  • Rotary applications up to 17 bits/360° absolute position
  • Integration into servo motors
  • Industrial and maritime valve control
  • High precision test and measurement machines
  • Industrial and factory automation equipments
  • Textile, woodworking & packaging machineries
  • Nacelle & blades control in wind turbine

Lifecycle Status


Substance Compliance

  • RoHS6
    Fully Compliant
Specification Value
Lifecycle Active
Distrib. Inventory Yes
RoHS6 Compliant Y
Line Driver N
Motion Type Rotary
Optical Method Transmissive
Output Code Gray
Output Type Digital
Shaft Diameter 8
Resolution 17 Bits
AppCad3 i
Data Sheet1 i
Reliability Data Sheet1 i
User Guide1 i