•Since the analog signal only lasts for a few microseconds at maximum, it must be converted to a digital pulse for longer term processing
•This is achieved by an ADC – which has an analog input but a digital output
•The circuit divides the signal into a preset number of channels based on the number of bits collected
•8 bits will have 256 channels
•10 bits will have 1024 channels
•The higher the number of bits the more complex the computation and higher cost