A 11-bit ADC with Vref = 4.2 V has a step size equal to mV (you have to write 2 digits after the decimal point: . not,) for Vin=3.1V, the output is equal to
Added by Douglas R.
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We can do this by subtracting the reference voltage from Vin and dividing by the step size: Number of steps = (Vin - Vref) / step size = (3.1V - 4.2V) / 3.23mV = -1.1V / 3.23mV = -340.56 Since the ADC is a 12-bit ADC, Show more…
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