Posted by Tomi Engdahl on 5/23/2008, 12:45 pm, in reply to "Re: Optoisolating RDM"
One option to reduce the component count on isolated RS485 transceiver circuit is to use IL485 IC:
http://www.nve.com/Downloads/485.pdf
"The IL485 is the first isolated RS-485 interface in a standard 16-pin SOIC package that meets the ANSI Standards EIA/TIA-422-B and RS-485 and is compatible with 3.3V input supplies."
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