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Isolating the I2C BUS with Optocouplers for Industrial Applications

By Toshiba Electronics Europe GmbH


Ensuring robust I2C communication in industrial applications can be very challenging. 

In this whitepaper Toshiba discuss the basics of I2C communication, specification and timing diagrams along with the challenges of isolating I2C circuits.  Discover the criteria for selecting a suitable optocoupler and examine a simple fully isolated I2C bus design requiring a few passive and small signal components.


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