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???
11/26/08 06:56
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 		 #160305 - Differential mode advice
Responding to: ???'s previous message


The following datasheet says to wire internal ADC in differential mode .



If taking AGND as VRef- as common , is a Vref+ of 2.5V to 4.7V (at VDD=5V) still required or a signal of 0~5V ?. A Vdd of 5.12 as can be seen above is mandatory?

Thanks for your time.
Ap

List of 33 messages in thread
TopicAuthorDate
PCB routing question            01/01/70 00:00      
   once conneced inside ...            01/01/70 00:00      
   Maybe these links can help...            01/01/70 00:00      
      Is this ok            01/01/70 00:00      
         This is no PIC forum!            01/01/70 00:00      
            Not so            01/01/70 00:00      
               being in chat and the question having merit ...            01/01/70 00:00      
                  So you give me benefit of doubt :-)            01/01/70 00:00      
                     if two things are both beneficial ...            01/01/70 00:00      
                     I also recommend a 4-layer Board            01/01/70 00:00      
                        10-bit            01/01/70 00:00      
                           The rolling filters...            01/01/70 00:00      
                              changed            01/01/70 00:00      
                                 Wrong!            01/01/70 00:00      
                                    Consider this alternate            01/01/70 00:00      
                                       Exactly, that's what I meant!            01/01/70 00:00      
                                          Microchip people seems careless            01/01/70 00:00      
                                             Yes            01/01/70 00:00      
                                                To be on the safe side..            01/01/70 00:00      
                                                   Please compare and see...            01/01/70 00:00      
                                             Argh...not another chip here...            01/01/70 00:00      
                                                Oscillator pins as noise source            01/01/70 00:00      
                                                   Yes, the promises sound good...            01/01/70 00:00      
                                                      Differential mode advice            01/01/70 00:00      
                                                         I cannot see a differential mode            01/01/70 00:00      
                                                            Jpg format            01/01/70 00:00      
                                                               jpeg not so good for computer-generated images            01/01/70 00:00      
                                                            One point missed            01/01/70 00:00      
                                                               The SMPS should be enough of a reason            01/01/70 00:00      
                                    Great!            01/01/70 00:00      
                                       you have already lost the battle ...            01/01/70 00:00      
                                          Containing the damage            01/01/70 00:00      
                                             "hope springs eternal" ...            01/01/70 00:00      

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