SPI isolation using optocouplers

[void_error]

Hi,

I have used Silicon Labs devices to isolate I2C (bidirectional in one device), worked great on my Bench PSU.
Might be worth checking them out.

http://www.silabs.com/Marcom%20Documents/Resources/Isolation-Selector-Guide.pdf

Ian.

Found something that I can get from my main distributor - the Si8441.

Ditched the optos, although they could have replaced two Si8441s. Couldn't be bothered to add a bunch of resistors.

As I promised mentioned earlier... schematic (unfinished):