[sdiy] Choosing a DAC

[Olav Martin Kvern]

Hi Stewart,

Do look at the way that Sequential Circuits set up the DAC in the Pro-One. 
It's an Analog Devices AD558, an 8-bit DAC with an adjustable range. They 
use it as a 6-bit DAC, and feed it note values from 0 to 63 for just over a 
5-octave range at 1 volt per octave. Glide is handled by a separate circuit. 
It's really pretty brilliant (in my opinion).

With all of the incredible devices that are available today, it's easy to 
get hung up on DAC accuracy and resolution, but we can still learn a few 
tricks from circuitry from 1980.

Thanks,

Ole