Q
The primary ADC is differential. Can I convert on a single-ended input voltage
by grounding one
of the inputs?.
A
No, the ADC inputs for the primary ADC cannot be within 100mV of the rails.
Hence one of the
primary ADC inputs cannot be grounded. To convert on a single-ended input
voltage either bias
the signal up to a voltage so that the input signal is never within 100mV of
the rails or use the
Auxiliary ADC which features single-ended inputs.