Interesting matter, do you know any paper that tells about this issue ? I'm=
 not quote sure about iCouplers degrade.

Bob Axtell <engineer@cotse.net> escribi=F3: Joe Mailer wrote:
> Hello,
>
> I have two systems A and B. I'd like to have a robust optically isolated =
communication line (going real time). I have choose RS-232/422/485 as possi=
ble communication protocols. =

>
> I have been searching the net for optoisolators, there are a huge amount =
of those, but thinking that communication is bidirectional and it could be =
fast, what are more suitable optoisolators for doing such a thing ? I have =
been looking to (new) analog iCouplers[1], those look good, but i need good=
 MTBF and good support in the future. =

>
> Any other good idea ?
>
> Thanks !
>
> [1] http://www.analog.com/UploadedFiles/Product_Highlights/61991380562796=
3397963229iCoupler_Brochure.pdf
>
>    =

> ---------------------------------
>
> LLama Gratis a cualquier PC del Mundo.
> Llamadas a fijos y m=F3viles desde 1 c=E9ntimo por minuto.
> http://es.voice.yahoo.com
>   =

You have to be a little bit careful with opto-isolators. They degrade =

with time, degrade even faster if
the IR led is driven hard, so the performance you see initially won't =

hold up later.

--Bob
-- =

http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist


 		=

---------------------------------

LLama Gratis a cualquier PC del Mundo.
Llamadas a fijos y m=F3viles desde 1 c=E9ntimo por minuto.
http://es.voice.yahoo.com
-- =

http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist