Best DAC for DDS Waveform Generation between 1-100kHz (Ultra precision, Ultra low distortion, low noise)


If you have to build waveform generator and choose a DAC to generate ultra pure (over 100dB SFDR) ultra precision (below 5uV offset), ultra low noise (below 10nV/rsHz) 10khz sine wave what would you chose ?

My first choise is LTC1668 + composite amplifier from last page in LTC2757 datasheet.

But is there any better DAC+Opamp combination ?