# What is a 741 op amp used for?

## What is a 741 op amp used for?

IC 741 op amp is the most common op-amp used in various electronic circuits. The main function of an op-amp is to amplify AC and DC signals and also for mathematical operations like addition, multiplication, subtraction, etc.

## What is ideal value of op amp 741 for resistance?

For the 741 the input resistance measured to one input with the other grounded is about 2 Megohms. For FET input devices it is typically 10^12 ohms.

What is the gain of a 741 op amp?

741 Op-Amp Characteristics The frequency range of amplifier signals for IC 741 op amp is from 0Hz- 1MHz. The voltage gain of the IC 741 is about 2,00,000.

What is the other version of IC 741?

The IC LM321 is the single op amp version of LM324 which is a quad op amp IC and carries 4 of these ICs in one package. Therefore for applications which demand a single op amp with the attributes of the versatile LM324, in such cases this single op amp can be utilized effectively.

### Why is IC 741 called so reason?

The 741 is called an operational amplifier because that is what it is. They are high gain DC amplifiers with (usually) differential inputs and single outputs. In 1953 George Philbrick made them popular with the vacuum tube KW-2 model.

### Why IC 741 is not used for high frequency applications?

Why IC 741 is not used for high frequency applications? IC741 has a low slew rate because of the predominance of capacitance present in the circuit at higher frequencies. As frequency increases the output gets distorted due to limited slew rate.

What is the output impedance of a 741 op amp?

Op-amp Output Impedance For the 741 it is about 75 ohms but can be as high as several thousand ohms for some low power op-amps.

Why IC 741 is called so?

It was first manufactured by Fairchild semiconductors in the year 1963. The number 741 indicates that this operational amplifier IC has 7 functional pins, 4 pins capable of taking input and 1 output pin.

#### What is the supply voltage of IC 741?

Supply-voltage operating range for the 741 is +4.5 volts (minimum) to +18 volts (maximum), and it is specified for operation between +5 and +15 Vdc. The device will operate essentially the same over this range of voltages without change in timing period.

#### What is the drawback of op-amp IC 741?

Answer: The drawback of IC 741 is its low slew rate (0.5v/µs), which limits its use in relatively high frequency applications, especially in oscillators, comparators and filters.

What causes slew rate?

The slew rate is caused due to limited charging rate of the compensation capacitor and current limiting and saturation of the internal stages of op-amp, when a high frequency large amplitude signal is applied. For large charging rate, the capacitor should be small or the current should be large.

How do you find the slew rate of an op amp 741?

How to Measure Slew Rate? The slew rate is measured by applying a step signal to the input stage of the op-amp and measuring the rate of change occurs at the output from 10% to 90% of the output signal’s amplitude. Generally, the applied step signal is large and it is about 1 V.