Application of OP-AMP using summer

Which of the following is the correct formula for calculating the output voltage of a summer amplifier?

• Vout = Vin1 + Vin2 + Vin3 + …
• Vout = -Rf / R1 (Vin1 + Vin2 + Vin3)
• Vout = Rf (Vin1 + Vin2 + Vin3)
• Vout = Vin1 - Vin2 - Vin3 - …

A summer amplifier can be used to sum the output of multiple sensors. What is the correct term for this function?

• Sensor Addition
• Sensor Amplification
• Sensor Averaging
• Sensor Aggregation

What is the advantage of using an op-amp summer circuit for adding signals compared to a passive summer circuit?

• Higher Gain
• Lower Input Resistance
• Less Noise
• Ability to Amplify Signals without Loss

Which of the following is the correct formula for calculating the output voltage of a non-inverting summer?

• Vout = -Rf (Vin1 + Vin2 + Vin3 + …)
• Vout = Vin1 + Vin2 + Vin3 + …
• Vout = -Vin1 - Vin2 - Vin3 - …
• Vout = Rf / R1 (Vin1 + Vin2 + Vin3)

What happens to the output voltage of a summer amplifier if one of the input signals is negative?

• Output Voltage Decreases
• Output Voltage Increases
• Output Voltage remains the same
• Output Voltage fluctuates randomly

In a summer amplifier, what is the function of the feedback resistor (Rf)?

• To provide negative feedback
• To provide positive feedback
• To amplify the output signal
• To adjust the input resistance of op-amp

What is the output voltage of a summer OP-AMP circuit that has three input voltages of 2V, 3V, and 4V, respectively?

• a. 9V
• b. -9V
• c. 1V
• d. -1V

What is the output voltage of a summer OP-AMP circuit that has four input voltages of 1V, 2V, 3V, and 4V, respectively?

• a. 10V
• b. -10V
• c. 1V
• d. -1V

What is the output voltage of a summer OP-AMP circuit that has two input voltages of 5V and -3V, respectively?

• a. 2V
• b. -2V
• c. 8V
• d. -8V

What is the output voltage of a summer OP-AMP circuit that has four input voltages of 2V, -3V, 4V, and -5V, respectively?

• a. -2V
• b. -8V
• c. -2.5V
• d. -1.5V