Question

What are the different methods to convert analogue signals to digital signals and vice versa. With circuit diagrams explain their operation. Also discuss about their special features and limitations if any?

Answer 1

Almost every environmental measurable parameter is in analog form like temperature, sound, pressure, light, etc. Consider a temperature monitoring system wherein acquiring, analyzing and processing temperature data from sensors is not possible with digital computers and processors. Therefore, this system needs an intermediate device to convert the analog temperature data into digital data in order to communicate with the digital processors like microcontrollers and microprocessors.