It is a high gain direct coupled amplifier with very high input impedance and very low impedance
Circuit Symbol Of Operational Amplifer:
The circuit schematic of an operational amplifier is a triangle with two input terminals called as non-inverting (+), inverting (-) terminals.
There are 3 popular packages available. They are :
- Metal in line package
- Dual in line package
- Flat package
The following figures show the different IC packages with 8 and 14 respectively: