4.4 Analog ↔ digital

I declare: solidlikelyshaky

1. Explain resolution, full scale and the quantum of a 10- or 12-bit ADC, and calculate the voltage of one step.
2. Read a pack’s voltage through a divider with the ADC, and correct for the voltage reference’s error.
3. Explain the sampling theorem on a concrete case and show aliasing on the oscilloscope or in the data.
4. Produce an analog voltage by filtered PWM or by a DAC, and measure the result.
5. Explain oversampling and the moving average to gain resolution and calm on a measurement.
6. Diagnosis: an ADC reading that jumps several steps at rest, supply noise, source impedance too high or badly routed ground.