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???
12/07/10 17:28
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 		 #179963 - Cart before horse?
Responding to: ???'s previous message
Daniel Formosa said:
The one which I am using is the AT89C51AC2 which only has a 8/10 bit ADC inbuilt.

So it has an ADC which is not suited to your requirements, and not enough ports for your requirements - so why did you choose it??!

The usual approach is to consider the requirements, and then choose a processor which meets those requirements!

I have no idea concerning the conversion speed.

Then you had better find out pretty quickly - this is an essential piece of information!


List of 34 messages in thread
TopicAuthorDate
ADC to interface with 8051            01/01/70 00:00      
   Interfacing is the least of your problems!            01/01/70 00:00      
      16bit interface ADC to 8051            01/01/70 00:00      
         presicion engineering            01/01/70 00:00      
            Responding to Andy Neil mechanical part            01/01/70 00:00      
         dead easy, but            01/01/70 00:00      
   Many options            01/01/70 00:00      
      also            01/01/70 00:00      
      Responding to Oliver Sedlacek            01/01/70 00:00      
         Cart before horse?            01/01/70 00:00      
            Responding to Andy Neil            01/01/70 00:00      
               UH OH            01/01/70 00:00      
   "the"?            01/01/70 00:00      
      Responding to Erik Malund            01/01/70 00:00      
         Teachers doesn't always hint at the easiest solution            01/01/70 00:00      
            and some are lazy            01/01/70 00:00      
         Not a useful skill to learn            01/01/70 00:00      
            educational value?            01/01/70 00:00      
               8255 has an excellent datasheet            01/01/70 00:00      
                  Oh, please!            01/01/70 00:00      
   This will require very precise components and great skill            01/01/70 00:00      
      Audio don't require good voltage reference            01/01/70 00:00      
         Yes, but it's not cheap            01/01/70 00:00      
            They normally specify an SN figure instead            01/01/70 00:00      
               Marketing "specification" rather than engineering            01/01/70 00:00      
                  Still looking at wrong parameter            01/01/70 00:00      
                     maybe not            01/01/70 00:00      
                        Actually big need - audio sources, mixer etc are 24-bit            01/01/70 00:00      
                           drifting            01/01/70 00:00      
            no problem            01/01/70 00:00      
               Weeks??            01/01/70 00:00      
                  Depends            01/01/70 00:00      
         audio and voltage references            01/01/70 00:00      
   ADC to interface with 8051            01/01/70 00:00      

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