16bit AD/DA

[Joachim Verghese]

On Thu, 12 Aug 1999, SuperBad MoFo wrote:

> Can anyone recommend some cheap 16bit ADCs & DACs, and a US supplier?  I'd
> have thunk that the Digital Audio Revolution woulda made 16bits cheaper
> than 12, but I'm having trouble locating any.  My usual parts sources -
> Mouser & Digikey, don't seem to stock anything above 12bit.  I really don't
> care about linearity or speed - I want to use them for CVs, and cost is my
> primary concern.

For CV generation you'll need resistor ladder based converters, such
as Burr-Brown's PCM54/PCM56 or Analog Devices' AD1380/AD1856. These
are more expensive than Sigma-Delta type converters since they
employ laser trimmed resistors. Sigma-Delta converters are only good
for AC-signals (audio) and therefore are not suitable for CV generation.

Hope this helps.

-joachim