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.
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. http://www.analog.com/en/parametricsearch/10785