Q10Analog Circuits
Question
2 marks
Write the formulae of reference voltage in ADC.
Answer
The step resolution depends on the reference voltage and the number of bits: Step size = V_{ref} / (2^n).
In an Analog-to-Digital Converter (ADC), the Reference Voltage () dictates the full-scale input voltage range.
The relationship between the Reference Voltage, the number of bits , and the Resolution (Step Size ) is given by: