Ideal Values for Operational Amplifier Parameters
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Questions and Answers

What is the typical value of the input resistance in an amplifier circuit?

  • 0.5 V/μs
  • 75 Ω
  • 2 MΩ (correct)
  • 90 dB
  • In which configuration is the input applied to the inverting terminal of the amplifier?

  • Non-Inverting Amplifier
  • Inverting Amplifier (correct)
  • Substractor
  • Unity Gain Buffer
  • What is the ideal value for output resistance in an amplifier circuit?

  • 50 nA
  • 0 (correct)
  • 2 mV
  • 150 μV/V
  • Which parameter indicates the ability of an amplifier to reject common-mode signals?

    <p>CMRR</p> Signup and view all the answers

    What does the unity gain buffer do to the input signal?

    <p>Passes input signal without change</p> Signup and view all the answers

    In a Common Emitter configuration, which of the following describes the relationship between the base current (IB) and the collector current (IC)?

    <p>IB &lt; IC</p> Signup and view all the answers

    When comparing a MOSFET with a BJT, which of the following statements is true regarding power gain?

    <p>BJT has higher power gain than MOSFET</p> Signup and view all the answers

    Which of the following statements is true regarding the input resistance of a BJT amplifier in the Common Collector configuration?

    <p>The input resistance is low due to the high current gain</p> Signup and view all the answers

    Which of the following describes an important difference between BJT and MOSFET in terms of control?

    <p>BJT is a voltage-controlled device while MOSFET is a current-controlled device</p> Signup and view all the answers

    In an Amplifier design, what does the term 'gamma' represent?

    <p>Current amplification factor of the transistor</p> Signup and view all the answers

    What does the output resistance measure in an amplifier circuit?

    <p>The resistance seen at the output terminals of the amplifier</p> Signup and view all the answers

    What is the purpose of k in the context of PSpice determination?

    <p>It is a constant related to the geometry of the device.</p> Signup and view all the answers

    What does the Input Offset Current of an Op-Amp measure?

    <p>The difference between the currents into inverting and non-inverting terminals.</p> Signup and view all the answers

    What defines the Common Mode Rejection Ratio (CMRR) of a differential amplifier?

    <p>It is the ratio of differential gain to common mode gain.</p> Signup and view all the answers

    In an Op-Amp, what parameter is used to describe the change in input offset voltage due to supply voltage variations?

    <p>Power Supply Rejection Ratio (PSRR)</p> Signup and view all the answers

    Which parameter is defined as the maximum rate of change of output voltage per unit of time in an Op-Amp?

    <p>Slew Rate</p> Signup and view all the answers

    What does the Power Supply Rejection Ratio (PSRR) measure in an Op-Amp?

    <p>The change in Op-Amp's input offset voltage caused by supply voltage variation.</p> Signup and view all the answers

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