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 0V to 4V. The internal reference voltage of the ADC is 7V. 3.1 Draw a circuit diagram of the system. Clearly show the amplifier circuit with all required resistors to get the best resolution. 3.2 Calculate the voltage gain of the amplifier to ensure best resolution. 3.3 Calculate the step voltage of the A/D converter. 3.4 For a sensor reading of 13 bar, calculate the sensor output voltage and the ADC output code. 3.5 Calculate the scale factor to multiply the ADC output with, in order to display a sensor reading of between 0 and 15 bar.
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 0V to 4V. The internal reference voltage of the ADC is 7V. 3.1 Draw a circuit diagram of the system. Clearly show the amplifier circuit with all required resistors to get the best resolution. 3.2 Calculate the voltage gain of the amplifier to ensure best resolution. 3.3 Calculate the step voltage of the A/D converter. 3.4 For a sensor reading of 13 bar, calculate the sensor output voltage and the ADC output code. 3.5 Calculate the scale factor to multiply the ADC output with, in order to display a sensor reading of between 0 and 15 bar.
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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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 0V to 4V. The internal reference voltage of the ADC is 7V.
3.1
Draw a circuit diagram of the system. Clearly show the amplifier circuit with all required
resistors to get the best resolution.
3.2
Calculate the voltage gain of the amplifier to ensure best resolution.
3.3
Calculate the step voltage of the A/D converter.
3.4
For a sensor reading of 13 bar, calculate the sensor output voltage and the ADC output code.
3.5
Calculate the scale factor to multiply the ADC output with, in order to display a sensor
reading of between 0 and 15 bar.
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