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An amplifier using an op-amp with a slew rate 1 V/μsec has a gain of 20 dB. If the peak value of sinusoidal input signal is 1 V then determine the maximum frequency of the input signal that can be amplify without any distortion.
- a)100 KHz
- b)15.9 KHz
- c)157 KHz
- d)25.6 KHz
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
An amplifier using an op-amp with a slew rate 1 V/μsec has a gain o...
For distortion less output,
2p fm Af Vm <= S.R
Here, Af = 20dB
i.e, Af = 10
So, 
Most Upvoted Answer
An amplifier using an op-amp with a slew rate 1 V/μsec has a gain o...
The slew rate of an operational amplifier (op-amp) determines the maximum rate at which the output voltage can change. It is typically specified in volts per microsecond (V/µs) or volts per millisecond (V/ms).
If the slew rate of the op-amp is 1 V/µs, it means that the output voltage can change by a maximum of 1 volt in 1 microsecond. This limit is due to the finite bandwidth and internal capacitance of the op-amp.
To design an amplifier using this op-amp, you need to consider the desired gain, frequency response, and input/output impedance requirements. Here is a basic example of a non-inverting amplifier:
1. Choose the resistors to determine the desired gain. Let's say you want a gain of 10. The feedback resistor (Rf) will be 10 times larger than the input resistor (R1).
2. Determine the values of Rf and R1 based on the desired gain and input/output impedance requirements.
3. Connect the non-inverting input of the op-amp to the input signal source through R1. Connect Rf between the output and the non-inverting input.
4. Connect a bypass capacitor between the non-inverting input and ground to provide DC biasing.
5. Connect a decoupling capacitor between the power supply pins of the op-amp to filter out any noise or interference.
6. Connect the output of the op-amp to the load or further stages of amplification.
It is important to note that the slew rate limitation of the op-amp needs to be considered in the design to prevent distortion or signal clipping. If the input signal has high-frequency components that exceed the op-amp's slew rate, the output waveform may become distorted.
Additionally, if the desired gain is very high, the op-amp's bandwidth limitation may also affect the amplifier's performance. In such cases, you may need to use a different op-amp with a higher slew rate or consider using a different amplifier topology.
If the slew rate of the op-amp is 1 V/µs, it means that the output voltage can change by a maximum of 1 volt in 1 microsecond. This limit is due to the finite bandwidth and internal capacitance of the op-amp.
To design an amplifier using this op-amp, you need to consider the desired gain, frequency response, and input/output impedance requirements. Here is a basic example of a non-inverting amplifier:
1. Choose the resistors to determine the desired gain. Let's say you want a gain of 10. The feedback resistor (Rf) will be 10 times larger than the input resistor (R1).
2. Determine the values of Rf and R1 based on the desired gain and input/output impedance requirements.
3. Connect the non-inverting input of the op-amp to the input signal source through R1. Connect Rf between the output and the non-inverting input.
4. Connect a bypass capacitor between the non-inverting input and ground to provide DC biasing.
5. Connect a decoupling capacitor between the power supply pins of the op-amp to filter out any noise or interference.
6. Connect the output of the op-amp to the load or further stages of amplification.
It is important to note that the slew rate limitation of the op-amp needs to be considered in the design to prevent distortion or signal clipping. If the input signal has high-frequency components that exceed the op-amp's slew rate, the output waveform may become distorted.
Additionally, if the desired gain is very high, the op-amp's bandwidth limitation may also affect the amplifier's performance. In such cases, you may need to use a different op-amp with a higher slew rate or consider using a different amplifier topology.
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An amplifier using an op-amp with a slew rate 1 V/μsec has a gain of 20 dB. If the peak value of sinusoidal input signal is 1 V then determine the maximum frequency of the input signal that can be amplify without any distortion.a)100 KHzb)15.9 KHzc)157 KHzd)25.6 KHzCorrect answer is option 'B'. Can you explain this answer?
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