AD7821 with 12 Bit Resolution

We are using AD7821 ADC (8 bit) in one biomedical instrument. But, now to improve accuracy, we need 12 Bit ADC. Since we have current stock of PCB's where AD7821 is used, is there any ADC IC which is pin to pin compatible to AD7821 with 12 Bit resolution.

Or can you suggest us any solution?

Thank you in advance.

  • 0
    •  Analog Employees 
    on Mar 3, 2016 6:34 PM over 4 years ago

    Hi ETRX,

                Thank you for your question. From what I understand you are looking for replacement with higher accuracy ADC. We have a number of ADCs that  have higher resolution. In order for me to narrow down the list of ADC that would fit your application, may I ask some questions. May I know how fast are you sampling? What is the input voltage range? do you still prefer to have it in parallel or serial interface? what is the power requirement of the application? If this data is available, I can also check if we have a reference circuit and a complete solution for your application. I am glad to be of help.

                You may also want to do a parametric search on the Analog Devices website and filter from the list base from the parameters that fit your application. please refer to the link.



  • 0
    •  Analog Employees 
    on Aug 2, 2018 3:23 PM over 2 years ago
    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
    EZ Admin