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Why you need operational transconductance amplifier?
Usually output of an amplifier is a voltage ,...but in case of Operational Transconductance Amplifier ,Iout (current ) is the output. This feature, makes it useful for Electronic control of amplifier gain .
Why it is unsuitable for operational-amplifier to connect in open loop?
In open loop configuration the gain of the amplifier will be infinite, which in turn produces only square wave output.
The voltage gain of an inverting operational amplifier with negative feedback is controlled by the ratio of?
The series input resistor and the feedback resistor.
Why is an operational amplifier called so?
Originally such an amplifier did mathematical functions.
What is the physical significance of infinite open loop voltage gain of an ideal operational amplifier?
Distortion is estimated as closed loop gain divided by open loop gain. If the open loop gain approaches infinity, distortion approaches zero.
Why you need operational transconductance amplifier?
Usually output of an amplifier is a voltage ,...but in case of Operational Transconductance Amplifier ,Iout (current ) is the output. This feature, makes it useful for Electronic control of amplifier gain .
What is the low frequency gain in operational amplifier?
low frequency gain will be 20log(Vo/Vin)
What are the disadvantages of operational amplifier?
IT has very low gain. this is the biggest disadvantage. Thank You.
What does the OP stand for in OP amps?
Op amps stands for operational amplifier. An operational amplifiers is a high gain voltage amplifier that requires a differential input and produces single outputs.
How an operational amplifier can amplify DC signals?
It takes the difference between of two input and amplify by the open loop gain of the amplifier or closed loop gain of the amplifier. It is very hard to control open loop gain of 100 Db so it very seldom used
Why it is unsuitable for operational-amplifier to connect in open loop?
In open loop configuration the gain of the amplifier will be infinite, which in turn produces only square wave output.
The voltage gain of an inverting operational amplifier with negative feedback is controlled by the ratio of?
The series input resistor and the feedback resistor.
What is a programmable gain amplifier?
A programmable gain amplifier (PGA) is a electrical circuit that allows the controller (user, machine) to adjust its transfer function so as to provide larger or lesser voltage gain. Usually it is a simple circuit, using an operational amplifier with negative feedback. In the negative feedback loop, several resistors and switches open and close, in order to achieve the desirable gain.
Design and implementation of a buffer circuit using operational amplifier?
design and implementation of a buffer circuit using operational amplifier
Who is more gain amplifier cascaded amplifier or darlington amplifier?
Darlington amplifier has more gain when compared to cascade amplifier .
Why is an operational amplifier called so?
Originally such an amplifier did mathematical functions.
What is the lm358?
The LM358 is an operational amplifier.
