Hi team,
Our customer is considering to use 4ch ADC over 10bits resolution.
In the datasheet, it is written that if the source impedance is large, it deteriorates accuracy.
Their use case, in the worst case, the source impedance becomes 50 kΩ or more.
Is there any data or theoretical value indicating the influence when the source impedance is between 50 kΩ and 100 kΩ?
I am glad if there are data whose horizontal axis is up to 100 kΩ in Figures 59 and 60.
Could you tell us the formula that indicates the time it takes for the microcomputer to instruct the A/D conversion of 4ch to receive the result?
Best regards,
Tomoaki Yoshida