Opto-isolator Breakout

Sparkfun ElectronicsSKU: RB-Spa-750
Manufacturer #: BOB-09118

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Description

  • Designed for Opto-Isolation
  • Helpful for connecting digital systems to a high-voltage or noisy system
  • Compatible with dual wave, vapor phase and IR reflow soldering
  • RoHS Compliant

The Opto-isolator Breakout IC has two LEDs and two photodiodes built-in. This board electrically isolates a controller from the high-power system by use of an opto-isolator IC.

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Customer Reviews

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D
David
disappointing

I should have inspected the schematic more closely. Each output (from the opto-coupler IC) is buffered by a transistor in common-emitter configuration with a 10K pull-up resistor. It can't be used to drive a relay or other load. When the input goes high (logical-1), the opto-coupler IC becomes active, grounds the base of the output transistor, which then turns off. The output then goes to logical-1, pulled high by the 10K pull-up. I ended up buying a couple of naked opto-coupler chips, and tossed this breakout board into the parts bin for a future project.

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WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov.

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