I think this story was 'The Art and Science of RS-485':

http://www.chipcenter.com/circuitcellar/july99/c79bppdf.pdf

What cured their problems with static was MAX3095.

Anyway, it's an interesting article.

 Nikolai

---- Original Message ----
From: M. Adam Davis
Sent: Thursday, August 10, 2000 22:22:31
  To: PICLIST@MITVMA.MIT.EDU
Subj: [EE]: RS485 -vs- Static

> I remember reading a story of someone who had those same exact issues.  They
> started using a specific maxim driver/receiver which had quite a bit more
> protection than 'normal' and their problems went away.

> You might try other drivers, they really aren't all the same.  And some
> semiconductors are going to die no matter how much you protect them...

> I would start replacing failing chips with other brands or more robust ones and
> see which chips you end up not replacing any longer.

> -Adam

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