>> > I'm looking for a single device (meaning...I can do it with a couple o=
f
>> opamps,etc) that will accept a single ended 5V digital input, and give m=
e
>> differential output....+5/-5 out.  Rail to rail would be nice, but if I=
=20
>> need to run
>> it above 5V (say 9-12V) for the supply I can do that.  Highest frequency=
=20
>> 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 RS422/48=
5=20
> or CAN devices.

Note that he wanted +5/-5 differential. Not +5/0, which is what most=20
RS422/485/CAN drivers do IIRC.

Using two channels of an RS232 driver driven 180 degrees out of phase would=
=20
do it. In fact with a little trickery it can be done with just a (at least =
3=20
channel) RS232 driver chip and a diode or two.

-- Bob Ammerman
RAm Systems

--=20
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