Operational Amplifier Fundamentals – Exercise – 3

126. As the frequency increases, the input impedance of an op-amp ________ and the output impedance ________.

(a) increases, increases
(b) increases, decreases
(c) decreases, decreases
(d) decreases, increases

Answer
Answer : (c)
Explanation
Explanation : No answer description available for this question. Let us discuss.
Discuss
Discuss : Write your answer. Click here.

127. As the supply voltage increases, the voltage gain of the circuit ________ and the power consumption ________.

(a) increases, increases
(b) increases, decreases
(c) decreases, decreases
(d) decreases, increases

Answer
Answer : (a)
Explanation
Explanation : No answer description available for this question. Let us discuss.
Discuss
Discuss : Write your answer. Click here.

128. The maximum frequency at which an op-amp may operate depends on the ________.

(a) bandwidth (BW)
(b) slew rate (SR)
(c) unity-gain bandwidth
(d) All of the above

Answer
Answer : (d)
Explanation
Explanation : No answer description available for this question. Let us discuss.
Discuss
Discuss : Write your answer. Click here.

129. An IC unit containing a differential amplifier built using opposite-type MOSFET transistors is referred to as a ________ circuit.

(a) CMOS
(b) BiFET
(c) BiMOS
(d) None of the above

Answer
Answer : (a)
Explanation
Explanation : No answer description available for this question. Let us discuss.
Discuss
Discuss : Write your answer. Click here.

130. An IC unit containing a differential amplifier built using both bipolar and FET transistors is referred to as a ________ circuit.

(a) CMOS
(b) BiFET
(c) BiMOS
(d) None of the above

Answer
Answer : (b)
Explanation
Explanation : No answer description available for this question. Let us discuss.
Discuss
Discuss : Write your answer. Click here.

Related Posts

  • Operational Amplifier Fundamentals - 1435555555555143. With negative feedback, the returning signal (a) is proportional to the output current (b) is proportional to the differential voltage gain (c) opposes the input signal (d) aids the input signal
    Tags: signal, input, differential, gain, voltage, output, amplifier, electronics, engineering
  • Operational Amplifier Fundamentals - 1025555555555102. What is the difference voltage if the inputs are an ideal opposite signal? (a) The differential gain times twice the input signal. (b) The differential gain times the input signal. (c) The common-mode gain times twice the input signal. (d) The common-mode gain times the input signal.
    Tags: signal, gain, input, differential, common-mode, amplifier, voltage, electronics, engineering
  • Operational Amplifier Fundamentals - 1065555555555106. What is the difference voltage if the inputs are an ideal in-phase signal? (a) The differential gain times twice the input signal. (b) The differential gain times the input signal. (c) The common-mode gain times twice the input signal. (d) The common-mode gain times the input signal.
    Tags: signal, gain, input, differential, common-mode, amplifier, voltage, electronics, engineering
  • Operational Amplifier Fundamentals - 1885555555555188. With negative feedback, the returning signal: (a) aids the input signal (b) is proportional to output current (c) opposes the input signal (d) is proportional to differential voltage gain
    Tags: signal, input, gain, voltage, differential, output, amplifier, electronics, engineering
  • Operational Amplifier Fundamentals - 1455555555555145. A differential amplifier has a common-mode gain of 0.2 and a common-mode rejection ratio of 3250. What would the output voltage be if the single-ended input voltage was 7 mV rms? (a) 1.4 mV rms (b) 650 mV rms (c) 4.55 V rms (d) 0.455 V rms
    Tags: amplifier, common-mode, voltage, differential, gain, output, input, electronics, engineering

LEAVE A REPLY

Please enter your comment!
Please enter your name here