IV for PCM1730

Hi all...

The PCM1730 has balanced current outputs labeled as IOUT+ and IOUT-.

The PDF shows a "typical" IV stage which consists of a opamp based IV for each half of the output followed by a summing opamp.

I wish to stick to opamps for the IV (OPA637's), but was wondering if i can use only one half of the output which will cut the number of opamps needed.

I found a web site which shows the same DAC with this output stage:

Will i be comprimsing the quality of the DAC by only using 1/2 of the output like the diagram above?