> >> > I'm looking for a single device (meaning...I can do it with a couple=
 of
> >> opamps,etc) that will accept a single ended 5V digital input, and give=
 me
> >> differential output....+5/-5 out.  Rail to rail would be nice, but if =
I need to
> run
> >> it above 5V (say 9-12V) for the supply I can do that.  Highest frequen=
cy would be
> >> about 5KHz that I would run thru it.
> >> >
> >> > Ideas?
> >> >
> >> >
> >> Look into RS-232 driver chips!
> >
> >RS232 won't give him differential output - that is why i suggest RS422/4=
85 or CAN
> devices.
>=20
> AFAICS he wants differential (2 lines) as well as bipolar (+/-5V)
>=20
> RS422/485 won't give bipolar
>=20
> I'd suggest using 2 channels  of an RS232/432 driver, with an inverter fe=
eding one
> input.

Ok, I didn't pick up on the -5V requirement. I guess then using 3 blocks in=
 a good old 1488 driver - one as the inverter between the two inputs of the=
 others - would work fine.


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