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06/21/04 17:28
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#72858 - Anti-aliasing filter Input Impdence ADC
Hi friends,
In one of my 8052 applications I have to monitor the mains voltage. I will be measuring the mains voltage by suitable stepdown -> Opto for isolation -> ADC0809. I want to know
1. What kind of anti aliasing filter should be used at the inputs of ADC0809. The frequency of input signal is the mains frequency = 50Hz
2. Should I connect some resistor in series with the opto output [ Matching impedence ].

Thank you very much.
Regards,
Prahlad Purohit

List of 3 messages in thread
TopicAuthorDate
Anti-aliasing filter Input Impdence ADC            01/01/70 00:00      
   RE: Anti-aliasing filter Input Impdence ADC            01/01/70 00:00      
      RE: Anti-aliasing filter Input Impdence ADC            01/01/70 00:00      

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