Can a R2R DAC also have a chip? I am as usual confused.
R2R chip dacs were the old obsolete PCM1702 PCM1704 TDA1541 etc etc, all were stopped being made because the laser trimming of the microscopic R2R resistors, it was too expensive and time consuming for a chip to be sold for $20
They went for delta sigma because it was far cheaper and no laser trimming involved.
Today we have R2R back again but this time discrete normal size resistors that are even better matched today without doing anything to them, all good for the sound of digital.
Cheers George