A pressure sensor with amplification is connected to an ADC (12-bit). If the sensor reads 18 bar, the sensor output is 4V. The pressure range that the sensor can measure is 0 to 18 bar, and the output voltage range is OV to 4V. The internal reference voltage of the ADC is 7V. Draw a circuit diagram of the system. Clearly show the amplifier circuit with all required resistors to get the best resolution.