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AD7978 Serial interface question

Question asked by fbartra.0 on Jan 20, 2016

There are  couple of things that I am not sure about interfacing with this device:

 

As I understand the sampling rate is 8KHZ at 24bits, so clock rate will be at least 192Kbps

 

Also,

I2C = 400KHZ clock

SPI = 2.5MHZ clock

HSDC = 8MHZ

 

so it is possible that I can read at 8KHZ data even with I2C interface?

 

so when will I need the HSDC? what are the benefits of this interface?

 

Thank you

 

Fausto.

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