[oopic] Signal levels for a2d objects

I recently picked up a sensor that converts air pressure to voltage
differential. You give the input leads a GND and a +5v, connect it
to an air pressure line in the 0-3000 PSI range, and it produces a
voltage differential on the output lines in the 3m-50mv range.

I was hoping to be able to use this with my OOPic-R, but I'm
concerned that the voltage diff may be too small for the OOPic to
detect. I have the negative output of the sensor connected to line 3
and am using the oA2D.ExtVRef2=1 so that it is used for the negative
voltage reference. For now I have the postive refence just being +5v
(oA2D.ExtVRef=0), but if I could find a suitable 50mv source I could
set that to 1 and connect that source to I/O line 4. For now, it
doesn't seem to be enough voltage to register.

Any thoughts on whether this low of voltage can be used with oA2D?

If not, does anyone know of any chips out there that could take a 0-
50mv range and amplify it to a level that would work better with the
OOPic's A2D?

Thanks,
Mike

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