Electronics - Operational Amplifiers - Discussion
Discussion Forum : Operational Amplifiers - General Questions (Q.No. 1)
1.
An ideal operational amplifier has
Discussion:
34 comments Page 1 of 4.
Archana said:
8 years ago
What is an operational amplifier?
(1)
Abhishek said:
9 years ago
Why the input impedance is infinity?
Why should we take this condition?
Why should we take this condition?
Tamim said:
1 decade ago
Offset output : Showing some error voltage on output without input.
Anshul said:
1 decade ago
Hi Meda and Komal,
I have a doubt. The Gain of OPAMP is infinite. And we know that GBW product is always constant. Then how it is possible for OPAMP to have infinite bandwidth too?
I have a doubt. The Gain of OPAMP is infinite. And we know that GBW product is always constant. Then how it is possible for OPAMP to have infinite bandwidth too?
Pravin said:
10 years ago
In what loop gain is maximum?
Ramesh said:
10 years ago
What is the difference between resistance and impedance?
Umar farooq said:
9 years ago
By its very nature a DC circuit will not exhibit any form of Reactance, therefore, opposition to current flow will always be measured in Resistance.
Reactance exists in two forms, Capacitive & Inductive. Impedance can, therefore, be thought of as the opposition of electrical current flow in an AC circuit.
Reactance exists in two forms, Capacitive & Inductive. Impedance can, therefore, be thought of as the opposition of electrical current flow in an AC circuit.
Arif said:
9 years ago
Why we need negative feedback?
Sharmeen said:
9 years ago
Negative feedback is used to stabilize voltage gain, decrease o/p impedance, increase i/p impedance, decrease distortion, increase bandwidth.
Chetan said:
9 years ago
Thank you all for the explanation.
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