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AD7193 SPI communication without Avdd supplied

Question asked by ccenten on Jul 28, 2014
Latest reply on Jul 30, 2014 by ChrisD.Rama

Hi,

 

Is it necessary to have Avdd supplied to communicate with the AD7193 via SPI? I would like to switch off the Avdd to reduce power consumption from other parts on the bus but maintain Dvdd to the ADC so that I can maintain communication. Is this possible or are Avdd and Dvdd both required to communicate with this part?

 

Thank you!

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