# Inverting Amplifier

It is very easy to make an amplifier using an Operational Amplifier IC. The amplification factor is decided the ratio of two resistors.

# Objective

Wire an Inverting amplifier using an Op-Amp, like µA741 or OP07, and test it.

# Procedure

- Make the connections on bread board as shown in the figure.
- Set WG amplitude to 80 mV and frequency to 1000 Hz
- Enable A1 and A2, and set ranges to 1V
- Enable the amplitude and frequency displays of A1 and A2.
- Make connections and calculate the voltage gain from the output
- Change gain by changing the resistor values.

The amplitude gain and and the phase difference can be observed from the output below.

# Discussion

Using expEYES, it is not possible to study the high frequency response.