, analog inputs are often 16-bit "words". For instance, a first analog input might begin at memory address IW64 within the TIA Portal environment.
The resistance a circuit presents to the current. High-impedance analog inputs draw very little current, which is ideal for accurate measurements. Analogin
How often the analog signal is measured. A common rule is to sample at least 10 times the frequency of the signal being measured. , analog inputs are often 16-bit "words"