The data sheet suggests using a differential output stage for this DAC for best dynamic performance (distortion etc.). Figure 103 shows only the IOUTP output being used to create a single-ended output, though, with IOUTN simply grounded. This seems like a waste. Would the attached schematic be a better use of the differential DAC outputs?
In a separate thread Tguy recommended using Ifs = 4 mA and a 1 V common mode voltage for +/- 0.5 V swing with this DAC. This circuit uses an external CM of 1.0 V and gives me the +/- 0.5 V I want with only a +/- 0.25 V swing on the DAC outputs themselves. Is this preferred?
To use this circuit, should CML be left disconnected?