What is adc resolution?

ADC resolution refers to the smallest change in an analog signal that can be represented by the digital output of an Analog-to-Digital Converter (ADC). It is typically expressed in bits; for example, a 12-bit ADC can represent 2^12 or 4096 discrete levels. Higher resolution allows for more precise measurements of the analog signal, as it can differentiate smaller changes in voltage. Essentially, the resolution determines the accuracy and detail of the digital representation of the analog input.