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A: Any amplifier will have greater band with if operated open loop. It will also be very unstable so negative feedback is implemented for that reason. There is some drawback when feedback the band width of the amplifier decreases, So is important to find out if the amplifier when stable will it have the band width required
What else can I help you with?
If bandwidth of amplifier reduced then thermal noise in amplifier?
thermal noise willbe reduce
What is the bandwidth of an amplifier that produces a square wave with a rise time of 000002 second?
The bandwidth of an amplifier can be estimated using the rise time (tr) of the output signal with the formula: Bandwidth (BW) ≈ 0.35 / tr. For a rise time of 0.000002 seconds (2 microseconds), the bandwidth would be approximately 0.35 / 0.000002 = 175,000 Hz, or 175 kHz. This estimation assumes that the amplifier behaves in a way consistent with conventional bandwidth-rise time relationships.
What is unity gain bandwidth?
Unity gain bandwidth is the frequency at which an amplifier's gain drops to one (0 dB). It is a critical parameter in evaluating the performance of amplifiers, particularly operational amplifiers, as it indicates the range of frequencies over which the amplifier can effectively amplify signals without significant loss in gain. The unity gain bandwidth is inversely related to the gain of the amplifier; as the gain increases, the bandwidth decreases. This relationship is essential for designing circuits that require specific frequency response characteristics.
What is Gain Bandwidth product?
The Gain Bandwidth Product (GBP) is a key parameter in electronics, particularly in operational amplifiers, that defines the frequency range over which an amplifier can maintain a certain gain. It is the product of the amplifier's gain and the bandwidth at which that gain is measured, typically expressed in hertz. As gain increases, the bandwidth decreases, and vice versa, which helps in assessing the trade-off between amplification levels and frequency response. GBP is crucial for designing circuits that require specific performance characteristics across varying frequencies.
How do you use an instrumentation amplifier as a temperature indicator?
You use a thermocouple as the input to the amplifier circuit.
Which amplifier has largest bandwidth?
Direct coupled amplifier
What is effect on bandwidth due to positive feedback amplifier?
bandwidth decreases
What happens when the bandwidth of the amplifier increases?
When the bandwidth of an amplifier increases, it means the amplifier can process a wider range of frequencies. This can result in better signal quality and improved overall performance of the amplifier. However, increasing bandwidth may also lead to increased noise and distortion in the output signal.
If bandwidth of amplifier reduced then thermal noise in amplifier?
thermal noise willbe reduce
What is the purpose of determining frequency response?
frequency response curve helps us to find the bandwidth of particular amplifier circuit. Bandwidth is the range of frequency at which the amplifier works better....
What is the bandwidth of an amplifier that produces a square wave with a rise time of 000002 second?
The bandwidth of an amplifier can be estimated using the rise time (tr) of the output signal with the formula: Bandwidth (BW) ≈ 0.35 / tr. For a rise time of 0.000002 seconds (2 microseconds), the bandwidth would be approximately 0.35 / 0.000002 = 175,000 Hz, or 175 kHz. This estimation assumes that the amplifier behaves in a way consistent with conventional bandwidth-rise time relationships.
What is Bandwidth of RF amplifier?
That depends on its purpose. Some examples:RF amplifier in IF stage of AM radio: 10KHz.RF amplifier in TV set: 6MHz.RF amplifier in IF stage of FM radio: 200KHz.An RF amplifier in a military RADAR set will probably have very narrow bandwidth to reduce jamming possibility, but wide enough to allow for doppler shift of targets.
Why do you use feedback?
The voltage gain,input impedance,output impedance,bandwidth etc. are the characteristics of amplifier's. these are more or less constant for a given amplifier. These parameters are required to be controlled. This can be done by using feedback that's why we use feedback.
What is unity gain bandwidth?
Unity gain bandwidth is the frequency at which an amplifier's gain drops to one (0 dB). It is a critical parameter in evaluating the performance of amplifiers, particularly operational amplifiers, as it indicates the range of frequencies over which the amplifier can effectively amplify signals without significant loss in gain. The unity gain bandwidth is inversely related to the gain of the amplifier; as the gain increases, the bandwidth decreases. This relationship is essential for designing circuits that require specific frequency response characteristics.
Is their any use of low input capacitance in FET?
Yes, when designing distributed amplifier, the bandwidth (cut-off frequency) is inversely proportional to Cin(Fc=1/(pi*R*Cin)). Lower Cin means higher bandwidth.
Advantages of negative feedback amplifier?
Most practical amplifier circuits use negative feedback for the following practical benefits: Stabilization of voltage gain, decreasing output impedance, increasing input impedance, decreasing distortion, increasing bandwidth.
Working of Rc coupled amplifier using negative feedback?
As gain increases bandwidth decreases.
