ADS114S08IPBSR
But as we discussed over the phone just now, we have found through testing that when I use a millivolt voltage source to directly apply it to the ADC differential input (RC front end), the voltage can also be reached at the ADC inlet and it is an accurate given value, but the ADC cannot read the value; It would be better to connect a pressure sensor in the same situation. What we cannot understand is that for differential input, as long as there is a qualified differential voltage input, ADC should be able to output normally. Mafa can help analyze the reason.
We are currently using capacitors of X7R and X5R, and it seems better to replace them with capacitors of C0G. However, the main differences in this capacitor are temperature drift, accuracy, etc. I do not limit this here because the temperature is stable and the requirements for speed are not high. Could you please help analyze the reason. Thank you.