A flow rate transmitter specification is given as following: Input range: 0 to 300 GPM (Gallons Per Minute) Output range: -5V to 5V. If this transmitter needs to be connected to an A/D converter and the requirement is to detect at least 0.25 GPM difference at the input flow rate. What type of A/D converter you would use? What is the reference voltage you would select? To get the required resolution, how many output bits the A/D has to have?