LIC-DC CHARACTERISTICS OF OP-AMP

Remembering: What is the main function of an operational amplifier?

• Voltage Regulator
• Signal Amplifier
• Signal Conditioner
• Signal Modulator

Remembering: What is the common mode input range of an operational amplifier?

• 0V to 2V
• -5V to 5V
• 0V to 5V
• -2V to 2V

Remembering: What is the main feature of an operational amplifier with a high input impedance?

• Low Output Impedance
• High Output Impedance
• High Gain
• Low Gain

Understanding: What is the purpose of an operational amplifier in the positive feedback configuration?

• To increase output impedance
• To increase input impedance
• To increase gain
• To decrease gain

Understanding: What is the purpose of an operational amplifier in the negative feedback configuration?

• To increase output impedance
• To increase input impedance
• To increase stability
• To decrease stability

Understanding: What is the purpose of the non-inverting input terminal in an operational amplifier?

• To provide feedback to the amplifier
• To provide reference voltage to the amplifier
• To provide the input signal to the amplifier
• To provide the ground connection for the amplifier

Analyzing: What is the purpose of a compensation network in an operational amplifier circuit?

• To increase the gain of the amplifier
• To decrease the stability of the amplifier
• To provide a unstable frequency response
• To provide a stable gain and phase response

Analyzing: What is the purpose of a unity-gain buffer in an operational amplifier circuit?

• To increase the gain of the amplifier
• To decrease the stability of the amplifier
• To provide a low impedance output
• To provide a high impedance output

Evaluating: How does the frequency response of an operational amplifier vary with the type of feedback used?

• It increases with positive feedback and decreases with negative feedback
• It decreases with positive feedback and increases with negative feedback
• It remains the same with both positive and negative feedback
• It is dependent on the compensation network used

Creating: How can you increase the bandwidth of an operational amplifier circuit?

• By using positive feedback
• By using negative feedback
• By using a compensation network
• By using a high input impedance amplifier