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Why one will consider an operational amplifier as an I.C circuit?
Wiki User
∙ 6y ago
Operational amplifiers are usually bought as an I.C., but they may be constructed with discrete components too.
Wiki User
∙ 11y ago
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Why is negative feedback used in high gain amplifier?
A: Well for one thing if it is positive feedback the amplifier will saturate to one one side of the power buss or the other. An operational amplifier open loop gain can be 90Db which a tremendous gain so some negative feedback is necessary to reduce the gain and make the amplifier behave in the linear region for amplification
What is impedance coupled amplifier?
The purpose of impedance matching is to provide for the highest efficiency between either the stages of an amplifier circuit or from a device to the amplifier for the same purpose. Impedance matching us used to make the circuits compatible based on electrical characteristics of a particular circuit from one section (or stage) to the next.
Why the output of the operational amplifier positive even if the inverting input voltage is more also?
If the output of the operational amplifier is inconsistent with the inputs, then you are operating outside of the limits of the device. You might also have experienced lockup, a characteristic where the output locks in one state, but this still stems from operating outside of limits. Make sure the inputs are always within the specified range.
How op amp works as oscillator?
oscillator needs positive feedback in order to produce the undamped oscillations .This is done with help of he amplifier circuit.The oscillations are produced by the tank circuit cosisting of inductor and capacitor.The output of this tank circuit is fedback to the transistor which amplifies it and give back to the tank circuit input.If the gain of the circuit consisting of tank circuit and amplifier is more than one and the feedback given to tank circuit is in phase then we get undamped scillations as the output.
Is a buffer amplifier equivalent to a a one input And gate or or a one input OR gate?
No. In the general case, a buffer amplifier is an analog device, but an AND or an OR gate is a digital device. Even in the specific case of a digital buffer amplifier, its still not the same because the digital buffer amplifier has more power available in its output circuit, giving it a higher fanout than just an ordinary AND or OR gate.
Why will one consider an operational amplifier as an ic circuit?
Operational amplifiers are usually bought as an i.c., but they may be constructed with discrete compenents too. By the way, since i.c. means integrated circuit, your "ic circuit" reads as "integrated circuit circuit".
Why one will consider an operational amplifier as an IC circuit?
Operational amplifiers are usually bought as an i.c., but they may be constructed with discrete compenents too. By the way, since i.c. means integrated circuit, your "ic circuit" reads as "integrated circuit circuit".
How is a opamp generated?
An op-amp, or OPerational AMPlifier, is simply a pre-built transistor amplifier circuit on a self-contained integrated circuit chip (usually one chip holds multiple op-amps)
What are the advantages of operational amplifier 741?
It has several but one of the main ones is that it has built in frequency compensation, which its predecessor the 709 operational amplifier did not.
Where is the ground on an operational amplifier?
An opamp has a ground terminal on one of the pins.
What is amplifier and what is the general circuit of amplifier?
An amplifier amplifies voltage or current. The most basic amplifier consists of a transistor where a signal is fed into the base and is output to the emitter or collector. For simple, low frequency applications (not RF), it may be simpler to use an operational amplifier (op amp) than designing your own amplifier. Also, the data sheets provide very helpful schematics for creating an amplifier. A very common one is the 741; these are also fairly cheap.
Why a triangle symbol for an operational amplifier?
Why not? It has two inputs and one output. So a triangle that can accomidate two intputs and one output is perfect!
How does the operational amplifier work?
The operational amplifier is a device with two inputs, and one output. One input is called non-inverting, while the other is called inverting. Sometimes, there are two outputs, in which case one is also non-inverting and the other inverting. Within the limits of the design of the operational amplifier and its circuit, the output will assume whatever state is necessary to make the two inputs equal to each other. The output goes in the same direction as the non-inverting input, or in the opposite direction as the inverting input. Note that for the operational amplifer to work correctly, there needs to be some kind of feedback loop, usually from output to inverting input (we call this negative feedback), so that the output can track one of the two inputs in the ratio of the bridge that is setup in the circuit design.
Circuit diagram of RC coupled amplifier?
One of the several uses of an RC coupled amplifier is to amplify the given input signal. It makes use of a sinusoidal input signal.
Why is negative feedback used in high gain amplifier?
A: Well for one thing if it is positive feedback the amplifier will saturate to one one side of the power buss or the other. An operational amplifier open loop gain can be 90Db which a tremendous gain so some negative feedback is necessary to reduce the gain and make the amplifier behave in the linear region for amplification
What is impedance coupled amplifier?
The purpose of impedance matching is to provide for the highest efficiency between either the stages of an amplifier circuit or from a device to the amplifier for the same purpose. Impedance matching us used to make the circuits compatible based on electrical characteristics of a particular circuit from one section (or stage) to the next.
What does the name Op Amp stand for?
The name Op Amp stands for Operational Amplifier. There are lots of different types of operational amplifiers. It would be wise to look for professional advice before deciding which one is right for you.
