Op-amps need only a few exterior components such as resistors and capacitors to create an amplifier or one of many other devices. Using the op-amp IC saves time and money and also makes the repair and troubleshooting much simpler. There are over twenty transistors in an op-amp chip along with all the resistors needed for bias. It was only natural that an amplifier used so extensively be designed as a single chip. Originally, the term operational amplifier applied to any complete circuit designed from many discrete components that resulted in a high gain, high-performance dc amplifier. It is also used extensively for instrumentation (metering current or voltage). It can be used to regulate power supplies, made into a simple signal generator, used as an oscillator, used as a radio or TV receiver, used as a timer, or used as a filter. The 741 op-amp is a general purpose amplifier. The op-amp can be corrected easily to compensate for temperature changes. Many amplifiers have a slight output voltage due to temperature changes in the components. Having a zero offset voltage means it has features that allow the amplifier output to be adjusted to absolute zero voltage. It has a high gain capability and can be adjusted for zero offset voltage.This means the frequency of the signal being amplified has little effect on the operation of the amplifier as compared to other amplifiers.

The op-amp has a wide frequency response.

It has a high input impedance and a low output impedance, which makes it an excellent amplifier.

The 741 op-amp is a near-perfect amplifier.

741 Operational Amplifier Characteristics

Pengganti ic 741