I have a requirement to have an I2C link across an isolation boundary. The
voltage requirements of the boundary are not high, it is just that I am
needing to emulate some circuitry for testing purposes from the rest of the
test equipment.

I will not need to be running the I2C link at high speed, so I was thinking
in terms of opto-isolators to achieve this. Anyone have any experience in
this area, especially the bi-directional part?

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