For ADC input, my input signal is sinusoidal with no DC, that is, it has positive and negative value. Is it possible to convert a negative value without problem?
In the document, the input level is limited by Vref+ and Vref-. But Vref- seems to be tied to GND in general, which implies a negative value cannot be converted without problem.Can Vref- be connected external -5V or -3.3 V for handling a negative val...