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???
11/13/03 20:51
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 		 #58583 - RE: 8bit DAC + 8 bit DAC =16Bit DAC?
Responding to: ???'s previous message
Guys,

I agree with Kai and Michael, and have actually tried to get two multiplying 8 bit DACs to work, the proposition is dicey at best. You do not achieve even close to 16 bit resolution! All of the resistor tolerances have to be matched, otherwise the output goes to hell, drifting output, noise, etc.

Analog Devices sells some high quality 16 DACs that at least have a chance of achieveing 16 bit resolution (or at least 15 bit useable resolution).

Jacob


List of 24 messages in thread
TopicAuthorDate
8bit DAC + 8 bit DAC =16Bit DAC?            01/01/70 00:00      
   Fundamental error            01/01/70 00:00      
      RE: Fundamental error - Andy            01/01/70 00:00      
         RE: Fundamental error - Andy            01/01/70 00:00      
   Practical considerations            01/01/70 00:00      
      RE: Practical considerations            01/01/70 00:00      
         Profiles?            01/01/70 00:00      
   RE: 8bit DAC + 8 bit DAC =16Bit DAC?            01/01/70 00:00      
   RE: 8bit DAC + 8 bit DAC =16Bit DAC?            01/01/70 00:00      
      RE: 8bit DAC + 8 bit DAC =16Bit DAC?            01/01/70 00:00      
   RE: 8bit DAC + 8 bit DAC =16Bit DAC?            01/01/70 00:00      
      RE: 8bit DAC + 8 bit DAC =16Bit DAC?            01/01/70 00:00      
      RE: 8bit DAC + 8 bit DAC =16Bit DAC?            01/01/70 00:00      
   RE: 8bit DAC + 8 bit DAC =16Bit DAC?            01/01/70 00:00      
      RE: 8bit DAC + 8 bit DAC =16Bit DAC?            01/01/70 00:00      
         RE: 8bit DAC + 8 bit DAC =16Bit DAC?            01/01/70 00:00      
            RE: 8bit DAC + 8 bit DAC =16Bit DAC?            01/01/70 00:00      
               RE: 8bit DAC + 8 bit DAC =16Bit DAC?            01/01/70 00:00      
         RE: 8bit DAC + 8 bit DAC =16Bit DAC?            01/01/70 00:00      
      RE: 8bit DAC + 8 bit DAC =16Bit DAC?            01/01/70 00:00      
   RE: 8bit DAC + 8 bit DAC =16Bit DAC?            01/01/70 00:00      
      RE: 8bit DAC + 8 bit DAC =16Bit DAC?            01/01/70 00:00      
   RE: 8bit DAC + 8 bit DAC =16Bit DAC?            01/01/70 00:00      
   RE: 8bit DAC + 8 bit DAC =16Bit DAC?            01/01/70 00:00      

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