HRPG Series
Miniature Panel Mount Optical Encoders
Data Sheet
Description
The HRPG series is a family of miniature panel mount
optical encoders, also known as Rotary Pulse Gen-
erators (RPG) and digital potentiometers. The HRPG is
designed to be mounted on a front panel and used as
a rotary, data-entry device. The HRPG is very flexible
for numerous applications due to the many configura-
tion options available. These options include detents or
smooth, multiple terminations, versatile mounting capa-
bilities, and different shaft configurations.
The HRPG uses optical reflective technology providing
accuracy and reliability to the encoder. An LED emits
a beam of light onto the specular codewheel surface.
When the light strikes the surface, it projects the image
of the codewheel back on the photodetector, causing
the output to change. The entire detector circuit is on
one IC, thus the part is less sensitive to temperature
and other environmental variations.
Features
Miniature size
Smooth turning and detented options
Multiple mounting bracket options
Uses optical reflective technology
Quadrature digital output
Small footprint for versatile mounting
TTL compatible
Applications
Typical applications for the Rotary Pulse Generator include
front panel instruments, audio/visual boards, and other
devices requiring digital output from a turning knob.
Note: Avago Technologies encoders are not recom-
mended for use in safety critical applications. Eg. ABS
braking systems, power steering, life support systems
and critical care medical equipment. Please contact sales
representative if more clarification is needed.