Thanks,

what about a source for a off the shelf 16 bit parallel DAC? or dual?=20
Thats my problem... is to find a good source of them.

Richard.

>>  > Am I nuts?

 >>  Possibly. However, I am not a doctor

 >>  > Can this be done ?

 >>  Not really, because each DAC has its own inaccuracies. The
 >>  LSb error in the MSB DAC is greater than the value of the
 >>  entire LSB DAC, so actually rendering the LSB DAC surplus
 >>  to requirements, effectively leaving you with just the MSB DAC.
 >>  You need a proper 16-bit or greater DAC

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