SV: RE: SV: Re: [sdiy] 16bit DC, DAC, SPI!

[karl dalen]

--- Bruce Duncan <modcan at sympatico.ca> 
 >There was some issues with DC ripple? No?
> > >KD
 AD5663R series of DACs from Analogue Devices.
> The 16bit ones are accurate to +/-8 LSB typical which is about 600uV 
> at 5V range.
> They come in 12,14,16bit variety and are SPI. 

Hi Bruce, long time no see! :-)

I have a swing from 0-10volt so on 16bits that's 153uV, wich is small.
And wich is a spec that will be eaten by the charge injection of the muxes
im using. A idea is to do the ARP Chroma or Xpander solution, take a 12bit
and a 8 bit and set offsets, this will yeild better performance then a single
16bit device. So what if one takes a fast 12bitter with premium performance
and a premium mux/buffer for offsets befor muxing that futher out in the
system?!

It could even be cheaper!

(AD5663 says +/-16bits). But the 14bitter (+/-2-4bits) might be a neat midway? 

KD


	
	
		
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