3-Channel Reflective Incremental Encoder (Analog Outputs)

Currently Viewing:

The Broadcom AEDR-872x is a 3-channel reflective optical encoder device providing dual channel analog outputs and an index channel digital output. The differential analog outputs (Sin, /Sin, Cos, /Cos) can interface directly with most commercially available interpolator devices for high precision motion control measurements. As such, the device provides great design-in flexibility and can enhance the performance of existing motion control system.
The AEDR-872x houses an LED light source and a photo-detecting circuitry in a compact package. The miniature package coupled with low operating 5.0V option allows the device to be used in a wide range of space-constrained, low-power applications like portable devices in which space and power dissipation are primary concern. The device is designed to operate over -20 to +85 °C temperature range suitable for both commercial and industrial end applications.
Available Product Options:



  • 3 Channel Outputs
    • Dual Channel Analog Outputs
    • Index Channel Digital Ouput
  • Built-in Automatic LED Current Regulation
  • Encoding Resolution: 318 LPI
  • Power Supply Voltage: 5 V
  • Operating Temperature Range: -20 to +85 °C
  • Surface Mount Leadless Package: 3.95 mm (L) x 3.4 mm (W) x 0.956 mm (H)


  • Closed-loop Stepper Motors
  • Miniature Motors
  • Printers and Copiers
  • Card Readers
  • Scanners
  • Projectors
  • Portable Medical Equipment
  • Optometric Equipment
  • Consumer and Industrial Product Applications

Lifecycle Status


Substance Compliance

  • RoHS6
    Fully Compliant
Specification Value
Lifecycle Active
Distrib. Inventory Yes
RoHS6 Compliant Y
Motion Type Rotary
Operating Voltage (V) 5.0V
Optical Method Reflective
Output Type Analog
Product Size (mm) 3.4Wx3.95Lx0.9562 H
Operating Temperature Range -20°C to +85°C
Units In Shipping Tube 1000.0
Resolution 318 LPI
Application Note1 i
Data Sheet1 i
Reliability Data Sheet1 i