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???
08/23/10 17:44
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 		 #178246 - AD420
Responding to: ???'s previous message
We use the AD420 a lot. It has a three wire interface which you could easily isolate by three optos.

Unfortunately this chip is rather expensive...

Kai Klaas

List of 28 messages in thread
TopicAuthorDate
Frequency to 4-20mA convertion            01/01/70 00:00      
   requirement?            01/01/70 00:00      
   The Traditional...            01/01/70 00:00      
   Isolated MCU the current interface            01/01/70 00:00      
      requirement details            01/01/70 00:00      
         Range and resolution two separate things            01/01/70 00:00      
            How to increase resolution            01/01/70 00:00      
               An ADC doesn't need to be scaled 1 mS/cm for each tick            01/01/70 00:00      
         all SILabs chips I know ...            01/01/70 00:00      
         AD420            01/01/70 00:00      
            AD420 is costly            01/01/70 00:00      
               Yes, it's costly...            01/01/70 00:00      
                  agreed            01/01/70 00:00      
                     Implementing 16-bit PWM Using the PCA            01/01/70 00:00      
                        Trial Successful ! :)            01/01/70 00:00      
                           Well done            01/01/70 00:00      
                           Congrat            01/01/70 00:00      
                           thank you            01/01/70 00:00      
                              Re: thank you            01/01/70 00:00      
                                 Capacitor & Inductor Calculations            01/01/70 00:00      
                                    A blind request for one eye.......            01/01/70 00:00      
                                       Why inductors??            01/01/70 00:00      
                                          Re: Why inductors??            01/01/70 00:00      
            AD420 minimum 12V supply            01/01/70 00:00      
               Because...            01/01/70 00:00      
                  Sales arguement            01/01/70 00:00      
         PWM will probably be lowest cost            01/01/70 00:00      
   Several ways...            01/01/70 00:00      

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