I am studying the Arduino ADC.
I learned that the maximum sampling frequency of the Arduino ADC ( e.g. Due) is 1M sample per second.
As the Arduino ADC has only a 12-bit resolution I must use an external ADC with a 16-bit for higher resolution.
What is the maximum rate at which this Arduino can receive the sample signal from the external ADC? How can I find that?
In the case of Arduino's own ADC, it was 1M sample/Sec. But I don't know what can be the sample rate receiving limit for Arduino if it uses an external ADC. My knowledge is basic level so I am not able to understand the datasheet.