In Reply to: RE: Ladder DACs for volume controls. posted by joerosen1 on October 2, 2014 at 05:37:46:
"DAC's operating in the analog domain???"
Yup. Some are, or at least were, just R-2R networks and transmission gates so you could use them for four quadrant multipliers (one axis being digital, the other the "reference voltage" port) with a little biasing.
I would like to offer you more detail but I'm not sure that I still have any information (or if I do, that I can find it!) as it was something I did over a quarter century ago.
Since this wasn't an audio project I have no idea what it might have "sounded" like but it is an example of using an R-2R DAC in the analog domain.
Regards, Rick
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Follow Ups
- RE: Ladder DACs for volume controls. - rick_m 07:24:42 10/02/14 (5)
- RE: Ladder DACs for volume controls. - John Atkinson 10:52:34 10/04/14 (1)
- RE: Ladder DACs for volume controls. - Kal Rubinson 16:21:22 10/04/14 (0)
- RE: Ladder DACs for volume controls. - Kal Rubinson 19:15:55 10/02/14 (2)
- RE: Ladder DACs for volume controls. - rick_m 19:44:56 10/02/14 (1)
- ARSRC - Kal Rubinson 11:43:02 10/03/14 (0)