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???
06/12/07 16:40
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 		 #140606 - Voltage divider directly to input of CD4052?
Responding to: ???'s previous message
Purushottam said:
It is 1.1Meg & 5k6 resistor
combination to make input divided by 200 to 1.2V rms.

Do you buffer these signals, so that the CD4052 and by this the MCP3202 is driven low ohmically enough?

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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