LIC-APPLICATIONS OF OPERATIONAL AMPLIFIERS

What is the most common use of operational amplifiers?

• Mixing signals
• Amplifying signals
• Filtering signals
• Switching signals

What is the key factor that determines the gain of an operational amplifier?

• Input resistance
• Output resistance
• Feedback resistance
• Gain resistance

What is the function of an operational amplifier in an instrumentation amplifier?

• To amplify low-level signals
• To buffer the inputs
• To provide high common mode rejection
• All of the above

What is the most common configuration of an operational amplifier?

• Inverting amplifier
• Non-inverting amplifier
• Differential amplifier
• Unity-gain amplifier

What is the purpose of a summing amplifier?

• To combine multiple input signals into a single output signal
• To amplify the input signal
• To provide high common mode rejection
• To provide isolation between input and output

What is the function of an operational amplifier in a comparator circuit?

• To compare two input voltages
• To amplify low-level signals
• To provide high common mode rejection
• To provide isolation between input and output

What is the purpose of an operational amplifier in a voltage-to-current converter circuit?

• To convert a voltage signal into a current signal
• To amplify the input signal
• To provide high common mode rejection
• To provide isolation between input and output

What is the purpose of an operational amplifier in a current-to-voltage converter circuit?

• To convert a current signal into a voltage signal
• To amplify the input signal
• To provide high common mode rejection
• To provide isolation between input and output

What is the function of an operational amplifier in a transimpedance amplifier?

• To convert a current signal into a voltage signal
• To amplify the input signal
• To provide high common mode rejection
• To provide isolation between input and output

What is the purpose of an operational amplifier in a active filter circuit?

• To filter an input signal
• To amplify the input signal
• To provide high common mode rejection
• To provide isolation between input and output