Question
In an op-amp which of the following parameters depend on frequency.
A. Voltage gain
B. Noise current
C. CMRR
D. Output voltage swing
E. Gain bandwidth product
Choose the correct answer from the options given below :
This question was previously asked in
CUET PG 2026 Agri-Business Management Question Paper (25-Mar-2026) (Shift 2)
The correct answer is
A, B, C, D only
To determine which parameters of an op-amp depend on frequency, let's evaluate each option:
Parameters Explained:
- Voltage Gain (A): The voltage gain of an op-amp is frequency-dependent because it typically decreases with an increase in frequency due to the parasitic capacitances and limitations in the gain-bandwidth product.
- Noise Current (B): The noise current in op-amps is indeed influenced by frequency. At higher frequencies, the noise level can change, often increasing, which affects the overall performance.
- Common Mode Rejection Ratio (CMRR) (C): CMRR is also frequency-dependent. It tends to degrade as frequency increases, impacting the op-amp's ability to reject common-mode signals properly.
- Output Voltage Swing (D): Output voltage swing is generally not dependent on frequency, as it mainly relates to the op-amp's supply voltage range and its linear operating region.
- Gain Bandwidth Product (E): This is considered a constant parameter for an op-amp in its typical operating range, representing the frequency at which the gain of the amplifier is unity (1). It is used to define the frequency response of the amplifier but is not dependent on frequency.
Conclusion:
Based on the above reasoning, the parameters that depend on frequency are:
- Voltage Gain (A)
- Noise Current (B)
- Common Mode Rejection Ratio (C)
- Gain Bandwidth Product (E)
Hence, the correct parameters according to the question choices are A, B, C, E only. However, since the provided correct answer is A, B, C, D only, there seems to be an initial oversight. A possible interpretation could be that the question might have an error in the provided answers, as parameters E typically depends on frequency, not D. Ensure that the choices align with the corrected logical analysis.
Was this answer helpful?
Similar Questions
- Calculate the output voltage of an op-amp for input voltages of $V_{i1} = 150 \mu\text{V}$ and $V_{i2} = 140 \mu\text{V}$. The amplifier has a differential gain of $A_d = 4000$ and the value of CMRR is $100$ :
- For an op-amp having a slew rate of $4\text{ V}/\mu\text{s}$, what is the maximum closed-loop voltage gain that can be used when input signal varies by $0.1\text{V}$ in $10\mu\text{s}$ ?
For the series diode configuration of the given figure, determine $V_D$ and $I_D$.
For the given emitter-bias network, determine the values of $I_C$ and $V_{CE}$. Assume $\beta = 100$.
- Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : The gate of a MOSFET is insulated from body of FET by deposition of a very thin fragile layer of $\text{SiO}_2$ over the substrate.
Reason (R) : The device is therefore called an insulated gate field-effect transistor (IGFET).
In the light of the above statements, choose the most appropriate answer from the options given below : - Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : The body effect in MOSFET causes the threshold voltage $V_{\text{th}}$ to increase as source-body voltage $V_{\text{SB}}$ increases.
Reason (R) : Increasing $V_{\text{SB}}$ raises the surface potential and therefore reduces the barrier for inversion.
In the light of the above statements, choose the most appropriate answer from the options given below : - Sequence for standard n-well fabrication process is :
A. Passivation
B. n-well implant
C. Metallization
D. Source/drain diffusion
Choose the correct answer from the options given below : - What is the typical efficiency of half-wave rectifier:
- The sequence of physical events when forward bias is applied to PN junction:
A. Barrier potential reduces
B. Majority carriers injected across junction
C. Recombination in neutral regions increases
D. Diffusion current established across quasi-neutral regions
E. Net forward current increases
Choose the correct answer from the options given below : - Which of the following statements are correct:
A. A negative feedback can increase linearity and reduce distortion.
B. Positive feedback always improves stability of the amplifier.
C. Series-shunt (Voltage) negative feedback tends to reduce output impedance.
D. Closed-loop bandwidth typically increased when negative feedback is applied.
Choose the correct answer from the options given below :
Important Questions from Miscellaneous
- Which of the following scheduler/schedulers is/are also called CPU scheduler ?
(A). Short Term Scheduler
(B). Long Term Scheduler
(C). Medium Term Scheduler
(D). Asymmetric Scheduler
Choose the correct answer from the options given below: - A situation where two or more processes are blocked, waiting for resources held by each other is called:
- External fragmentation occurs ________.
- Which disk scheduling algorithm looks for the track closest to the current head position?
- Which CPU scheduling algorithm prefers the process with the shortest burst time?
Need Expert Advice?
Upcoming Exams
AIIMS Recruitment
August 31, 2026
GATE
February 06, 2027
Test Series
CUET
CUET PG Psychology (HUQP20) 2026 Mock Test Series
10 Tests
763 Attempts
3.7(15)
English
More Questions from CUET PG
