The op-amp IC 741 is a DC-coupled, high gain differential amplifier with external negative feedback. IC 741 is characterized by almost infinite open loop gain (100,000), almost infinite input impedance (2MΩ) and almost zero output impedance (75Ω).
IC 741 is most popular, cheap and easy to use op-amp. Some popular IC 741 name MCI741, LM741, SN72741, CA741, GS741 etc.
IC741 can be used as electronic integrator or differentiator, depending on the R-C network in the input and feedback circuit.
Application of Operational amplifier:-
The following lists of circuits functions is designed using op-amp:
Voltage follower, current to voltage converter, summing amplifier, integrator, differentiator, active filter, capacitance multiplier, simulated inductor, voltage to current converter, precision rectifier, analog to digital converter, sample and hold circuit, voltage comparator, servo amplifier.
Electronics projects Based on operational amplifier 741 IC posted in www.bestengineeringprojects.com