13.3.1 Understanding ideal op-amp characteristics

• An ideal op-amp has infinite open-loop gain
• An ideal op-amp has infinite output impedance.


  True
• An ideal op-amp has infinite bandwidth
• What assumptions simplify circuit analysis when using an ideal op-amp?

  Perfect amplification
• Why does an ideal op-amp have zero output impedance?

  To provide stable voltage
• Open-loop gain in an ideal op-amp is theoretically infinite
• An ideal op-amp has zero input impedance to prevent loading the source circuit.


  True
• A real op-amp has a small but non-zero output impedance.

  True
• An ideal op-amp has infinite open-loop gain
• What is an ideal op-amp?

  A theoretical amplifier
• An ideal op-amp has infinite input impedance.

  True
• An ideal op-amp has infinite bandwidth
• An ideal op-amp simplifies circuit analysis by assuming perfect amplification.


  True
• Match the type of op-amp with its open-loop gain:

  Ideal ↔️ Infinity

  Real ↔️ 100,000+
• An ideal op-amp has zero output impedance.
• The zero output impedance of an ideal op-amp ensures a stable voltage output regardless of load resistance.


  True
• An ideal op-amp can amplify signals of any frequency without attenuation
• Ideal op-amps have zero input bias current due to their extremely high input impedance.


  True
• The input impedance of a real op-amp is very high, measured in millions of ohms
• The input bias current of a real op-amp is small but non-zero
• An ideal op-amp has infinite input impedance
• What is the ideal bandwidth of an ideal op-amp?

  Infinity
• The ideal op-amp simplifies circuit analysis by assuming perfect amplification and negligible impact on the source circuit.

  True
• An ideal op-amp has infinite open-loop gain
• An ideal op-amp requires no current to bias its inputs.


  True
• The open-loop gain of a real op-amp is approximately 100,000
• Zero input impedance prevents loading the source circuit, ensuring accurate voltage sensing.

  True
• A real op-amp has a small but non-zero output impedance
• Real op-amps may have a small offset voltage that needs to be corrected for precise applications.

  True
• An ideal op-amp has infinite bandwidth
• Why is zero input bias current important in an ideal op-amp?

  Preserves input signal integrity
• The output impedance of a real op-amp is small but non-zero.

  True
• What is an ideal op-amp?

  A theoretical amplifier
• What is the input impedance of an ideal op-amp?

  Zero
• What is the offset voltage in an ideal op-amp?

  Zero
• No current flows into the input terminals of an ideal op-amp.

  True
• The open-loop gain of an ideal op-amp is infinite
• An ideal op-amp requires no input bias current.


  True
• What is the open-loop gain of a real op-amp?

  100,000+
• What is the output impedance of an ideal op-amp?

  Zero