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op-amp rolloff is an inherent low pass filter built into op-amp chips. Because op-amps have such a high gain, they are prone to breaking into high-frequency oscillation; therefore limiting the gain by frequency with a built in low pass filter helps stop this from happening.
Imagine a super small signal is leaking into an op amp, because of the high gain it becomes no longer negligible and we have a high frequency signal when the output should be zero. The low pass filter lowers the gain at these High frequencies.
Now, this will naturally create gain limits when designing circuits, forcing an upper bandwidth. This is adjusted for by lowering the gain you design into your circuit for the bandwidth you are dealing with (which is one of many reasons we build multi-stage amplifiers)
What else can I help you with?
What is the applications opamp buffer circuit?
An opamp buffer circuit is one where the input signal is connected to the plus input, and the output is connected to the minus input. Within the performance limitations of the opamp, the output will track the input. The advantage of the buffer circuit is that is presents very little load impedance to the input signal, while providing a low impedance from the output to drive whatever circuitry is connected there.
What do you understand by bandwidth of a parallel resonant circuits?
The bandwidth of a resonant circuit is defined as the distance between the two -3dB rolloff points in the response curve.
How do you bias a current mirror opamp?
If you go to the given link you will see the circuit of a current mirror using Op-Amp. And you can easily see how it is biased.
Is OP-amp a discrete component?
An opamp is a circuit of many components. It may either be built of many discrete components or be a single integrated component.
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)
Can you use the op-amp as timer?
yes, with additional circuitry. an opamp wired as a differentiator followed by an opamp wired as a comparator can provide short timing periods. an opamp wired as an integrator followed by an opamp wired as a comparator, plus some other circuits left as an exercise to the reader can provide long timing periods.
What is Victoria Beckam's middle name?
CarolineJane doe jonathen lipnicki hulio garcia cornilius Jane doe Matt rolloff anne rolloff
Similarity between opamp and comparator?
A comparator is simply an opamp with a certain configuation of external circuitry ( a few components) that make it function as a comparator.
Are the OP AMPS always linear?
not when they hit the power rail they aren't. or did you mean an opamp in a feedback circuit? the feedback circuit can give them a wide variety of transfer functions, some linear some nonlinear. nonlinear transfer functions include LOG, ANTILOG, GYRATION, SQRT, etc.
Does Molly Roloff have boyfriend?
No. One of the episodes she states that she never wanted a tattoo.
What is feedback resistance and what is it's use?
Feedback resistance is used to feed back the current obtained at output back into the circuit. Thus a virtual ground concept is developed.this is majorly used in applications of OPAMP[IC 741].
Is IC741 a hybrid ic?
no, the 741 opamp is a monolithic IC.
