Block Diagram of an Op-amp / Block diagram of an operational amplifier

Question is:

What is the block diagram of an Op-amp / Block diagram of an operational amplifier.

Solution:

Block Diagram of an operational amplifier is above:



There are four stages in any Op-amp. They are

1) Input stage:
Input stage is dual input  and balanced output differential amplifier The input stage provides the maximum input gain of the amplifier. It also establishes the input resistance of the op-amp.

2) Intermediate Stage:
Intermediate stage of Op-amp is the output of the first stage. It is dual input unbalanced output.

3) Level Shifting Circuit:
Level shifting circuit is used to shift the DC level at the output. It is the emitter follower using constant current source.

4) Output Stage:
It is the complementary symmetry push-pull amplifier. It increases the output voltage swing and raises the current supplying capability of the op-amp. It provides the low output resistance.



Tags:
Block Diagram of an Op-amp / Block diagram of an operational amplifier, Electrical Electronics, Different stages of op-amp, Operational amplifier