AD7321 or AD7327


I made some study for AD7321 for a while and I thought this chip could meet our requirement. But when I tried to purchase the evaluation board to perform a further evaluation, the system said that EVAL-AD7321 was not recommended for new designs and recommended EVAL-AD7327 for the new design.

I was wondering the recommendation is just for the evaluation boards or also including the chips? What's the difference between AD7321 and AD7327 except for the channels? Can I rely on the evaluation result from EVAL-AD7327 to make a decision that whether AD7321 is good for my application? My application only needs one input channel.

Thank you very much,


  • 0
    •  Analog Employees 
    on Apr 17, 2020 11:53 AM 10 months ago

    Hi Cloud,

    Yes this advice is just in relation to the eval-board itself. When the parts were transferred to our latest evaluation platform, the decision was made to create boards only for the AD7327/8/9.

    Other than channel count, functionality of the AD7321 is identical to the AD7327.