Analog Electronic Circuits
Lab (EC - 1094)
Autumn 2020
(ETC)
School of Electronics Engineering
Name: SOURASISH CHAKRABORTY
Roll No.: 2029117
Section: A27
Experiment No.:10
Experiment Name: Implementation of inverting and noninverting
amplifier using OP-AMP (LM741).
Student Signature:
, AIM OF EXPERIMENT:
Study of basic properties of operational amplifier:
1. Inverting
2. Non inverting
APPARATUS REQUIRED:
1. Resistances (Ri and Rf)
2. Op-Amp
3. Supply voltage
4. Connecting wires
THEORY:
Operational Amplifier commonly known as Op-Amp, is a linear electronic
device having three terminals, two high impedance input and one output
terminal. Op-Amp can perform multiple function when attached to different
feedback combinations like resistive, capacitive or both. Generally, it is used
as voltage amplifier and the output voltage of the Op-Amp is the difference
between the voltages at its two input terminals.
Op-Amp shows some properties that make it an ideal amplifier, its open
loop gain and input impedance is infinite (i.e., practically very high),
Output impedance and offset voltage is zero(i.e., practically very low)
and bandwidth is infinite(i.e., practically limited to frequency where its
gain become unity).
Figure: 1
Inverting Op-Amp:
The open loop gain (Ao) of the Om-Amp is very high which makes it very
unstable, so to make it stable with a controllable gain, a feedback is
applied through some external resistor (Rf) from its output to inverting
input terminal (i.e., also known as negative feedback) resulting in reduced
gain (closed loop gain, Av). So, the voltage at inverting terminal is now the
Lab (EC - 1094)
Autumn 2020
(ETC)
School of Electronics Engineering
Name: SOURASISH CHAKRABORTY
Roll No.: 2029117
Section: A27
Experiment No.:10
Experiment Name: Implementation of inverting and noninverting
amplifier using OP-AMP (LM741).
Student Signature:
, AIM OF EXPERIMENT:
Study of basic properties of operational amplifier:
1. Inverting
2. Non inverting
APPARATUS REQUIRED:
1. Resistances (Ri and Rf)
2. Op-Amp
3. Supply voltage
4. Connecting wires
THEORY:
Operational Amplifier commonly known as Op-Amp, is a linear electronic
device having three terminals, two high impedance input and one output
terminal. Op-Amp can perform multiple function when attached to different
feedback combinations like resistive, capacitive or both. Generally, it is used
as voltage amplifier and the output voltage of the Op-Amp is the difference
between the voltages at its two input terminals.
Op-Amp shows some properties that make it an ideal amplifier, its open
loop gain and input impedance is infinite (i.e., practically very high),
Output impedance and offset voltage is zero(i.e., practically very low)
and bandwidth is infinite(i.e., practically limited to frequency where its
gain become unity).
Figure: 1
Inverting Op-Amp:
The open loop gain (Ao) of the Om-Amp is very high which makes it very
unstable, so to make it stable with a controllable gain, a feedback is
applied through some external resistor (Rf) from its output to inverting
input terminal (i.e., also known as negative feedback) resulting in reduced
gain (closed loop gain, Av). So, the voltage at inverting terminal is now the
