I am looking at this DAC (not in particular but more as an example): http://www.ti.com/lit/ds/symlink/pcm1690-q1.pdf
It seems all the DAC is getting is +5V and 0V (and +3.3V for digital). It outputs differential outputs for each channel, e.g. DAC1+ and DAC1-.
Page 39 shows an interesting diagram:
How much are +Vs and -Vs meant to be? And if they are only used after the output, I guess the output of the DAC itself are between 0 and 5V?