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???
06/12/07 14:58
Modified:
  06/12/07 14:59
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 		 #140597 - Testing strategy recommendation
Responding to: ???'s previous message
Purushottam said:
Does the MCP gets destroyed?

You should always build two identical prototypes. If then both ones behave in the same faulty way, you most probably can exclude any chip defects.

In your situation change at least the used chips by fresh ones before you spend days in twisting your mind...

Kai

List of 25 messages in thread
TopicAuthorDate
MCP3202 ADC problem            01/01/70 00:00      
   Circuit ?            01/01/70 00:00      
      MCP3202 ADC problem            01/01/70 00:00      
         Testing strategy recommendation            01/01/70 00:00      
            Prototype            01/01/70 00:00      
               Could you specify all parts of your circuit?            01/01/70 00:00      
               What is driving the inputs of CD4052?            01/01/70 00:00      
                  Diagram blues            01/01/70 00:00      
                     Why diode in /CS line of MCP3202?            01/01/70 00:00      
                     Voltage divider directly to input of CD4052?            01/01/70 00:00      
                     Pseudo-differential mode?            01/01/70 00:00      
                        Who cares for Psudo?            01/01/70 00:00      
                           You definitely need buffers at the inputs of ADC!            01/01/70 00:00      
                              No violations            01/01/70 00:00      
      Here is CKT & code            01/01/70 00:00      
         Uncommented, unformatted code :-(            01/01/70 00:00      
            connection to CH0 & CH1            01/01/70 00:00      
               Ckt Diagram            01/01/70 00:00      
            Commented code            01/01/70 00:00      
               Some changes needed            01/01/70 00:00      
                  Formatting Forward Slash - not Backslash!            01/01/70 00:00      
                  Setup problem            01/01/70 00:00      
               Togglings needed while /CS is high?            01/01/70 00:00      
                  toggling CLK doesnt help!            01/01/70 00:00      
      A picture is worth a 1000 words            01/01/70 00:00      

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