current output DAC's (repost)

Hi,

I am hooking up a 12bit current output DAC (DAC7811)

with a 0V to 5V output voltage range.

I am putting an opamp I to V converter on the output of this current output DAC.

The datasheet shows these two hookups:

1. negative voltage output Vout = -Vref * Code/4096

1. positive voltage output

I would like the positive voltage output but it requires a -2.5V reference. What would be the best way to hook this DAC up for a 0V to 5V output range?

If I use a a -5V reference instead of the -2.5V reference will this provide a 0V to 5V output range? Does the output opamp need a bipolar supply as well for this?

It seems that since a voltage output DAC doesn't need any negative rails to generate unipolar output a current output DAC shouldn't either?

cheers, Jamie

ps. sorry for repost, my original post went to an old thread from January