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???
01/04/04 01:01
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 		 #61863 - RE: A/D and DAC on ADuC812
Responding to: ???'s previous message
On the ADuC812, if you happen to be using the on-chip VREF, which is 2.5 volts the A/D converter will produce output conversion codes from 0 to Full Scale from an input voltage range from 0 to VREF.

The D/A converter on the other hand will produce an output voltage range of 0 to 5 volts if you have VDD set at 5 VDC and are operating the D/A in Voltage Range_1.

This could account for the 2::1 difference you are seeing.

This information I determined by reading the data sheet for the part.

Michael Karas


List of 11 messages in thread
TopicAuthorDate
A/D and DAC on ADuC812            01/01/70 00:00      
   RE: A/D and DAC on ADuC812            01/01/70 00:00      
   RE: A/D and DAC on ADuC812            01/01/70 00:00      
      RE: A/D and DAC on ADuC812            01/01/70 00:00      
      RE: A/D and DAC on ADuC812            01/01/70 00:00      
         RE: A/D and DAC on ADuC812            01/01/70 00:00      
            RE: A/D and DAC on ADuC812            01/01/70 00:00      
               RE: A/D and DAC on ADuC812            01/01/70 00:00      
               RE: grounding; layout            01/01/70 00:00      
         nibble/byte ordering            01/01/70 00:00      
   RE: A/D and DAC on ADuC812            01/01/70 00:00      

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