The UOB8 is an eight-channel optoisolator board assembly that allows microcontrollers and other logic circuits to be interfaced to both input and output signals that require isolation.

The eight-optocoupler circuits may be used individually as input or output isolation circuits. They include terminal block connections for convenient wiring to nearly any circuit. The reverse voltage protection diodes and ESD suppression capacitors are included in the optocoupler input circuitry.

The standard UOB8 board comes with 6N139 or equivalent high-gain split-Darlington optocouplers. However, you can special-order it with 4N33 or equivalent medium-gain Darlington optocouplers to provide totally isolated individual open-collector outputs. Two 16-pin DIP resistor packs are used to select the input current and the output pull-up resistance, providing an easy method for customizing the UOB8 to almost any application.

The UOB8 is available as a complete circuit board assembly. It can be enclosed in an optional ABS plastic enclosure. The circuit board is 2.75² × 4.25² × 0.6². The enclosure is 3.6² × 6.0² × 1.6² (including mounting tabs).

The UOB8 board costs $49. The optional enclosure costs $20.

Industrologic, Inc.
www.industrologic.com