To determine the maximum gain a device can extract at that particular bandwidth
An op amp can have a very large gain, but a limited bandwidth. If you decrease the gain, you can increase the bandwidth.
The gain and bandwidth product is constant only for first order systems. However many complex systems which can be converted and studied as first order, it holds good. This is simple mathematics as in the first order system the frequency appears in the denominator. So if it increases by x times then gain (the modulus of the transfer function) is reduced by x times (approximately).
The Gain provided by the multistage amplifier is greater than the gain of single stage amplifier. The gain of the two stage amplifier is the product of the gain of the individual stages.
Bandwidth is the output of some light source, the width of the frequency range which can be transmitted by some element, the gain bandwidth of an optical amplifierthe width of the range of some other phenomenon. It's values may be specified in terms of frequency or wavelength.
In a cascade amplifier, two identical or non identical amplifiers are cascaded ,i.e., connected in series through a capacitor. They are mostly common emitter amplifiers that are cascaded together.The final gain of the cascaded amplifier is the product of the first amplifier's gain and the second amplifier's gain. However, the bandwidth of the cascaded version becomes lesser than the individual gains.
The product of bandwidth and gain is constant. If bandwidth increases then gain decreases and vice versa.
Amplifiers all have a gain bandwidth product that varies greatly from device to device. Obviously the bandwidth becomes important at very hi frequency. Is the gain enough for 100 megahertz for a gain of 10? if not you need another amplifier. also the bandwidth product is an indication of how close can one f/b without causing oscillations..
The basic relationship is that the two together form some kind of constant wherein you cannot have more of one without giving up some of the other. Want more gain? You'll have to work with a narrower bandwidth. Want more bandwidth? You will have to sacrifice some gain to get it.
An op amp can have a very large gain, but a limited bandwidth. If you decrease the gain, you can increase the bandwidth.
The gain and bandwidth product is constant only for first order systems. However many complex systems which can be converted and studied as first order, it holds good. This is simple mathematics as in the first order system the frequency appears in the denominator. So if it increases by x times then gain (the modulus of the transfer function) is reduced by x times (approximately).
The Gain provided by the multistage amplifier is greater than the gain of single stage amplifier. The gain of the two stage amplifier is the product of the gain of the individual stages.
A: The question not very well formulated. But i will try to answer it. Any amplifier will have the maximum gain and the wider bandwidth when it is in a open loop situation. As feedback is added both the gain and the bandwidth will decrease but stability will increase
1. less nonlinear distortion, 2. reduction in gain, which is actually in our control 3. since product of bandwidth and gain is constant, reducing gain gives higher bandwidth. 4. more gain stability, as for high gain values, stability is dependent on feedback factor, whic is in our control. 5. can be used to make voltage controlled voltage source, C cntrolled V sources, V controlled C sources and C controlled C sources
Netflow is a Cisco product to analyze network bandwidth usage.
bandwidth-delay
The process gain (or 'processing gain') is the ratio of the spread (or RF) bandwidth to the unspread (or baseband) bandwidth. It is usually expressed in decibels (dB).For example, if a 1 kHz signal is spread to 100 kHz, the process gain expressed as a numerical ratio would be 100,000/1,000 = 100. Or in decibels, 10log10(100) = 20 dB.
As gain increases bandwidth decreases.