Basic of an OP-AMP

1. Department:EEE
Submitted to:
Nusrat Alim
Lecturer, GUB Submitted by:
Mehedi Kahhar
ID # 143010001
Course Title: Electronics II

2. Basic of an
OP-AMP

3. Introduction
What is OP-AMP?
History of OP-AMP
Characteristics of OP-AMP
Types of OP-AMP
Applications of OP-AMP

4. What is an Op-Amp?
(The Surface)
An Operational Amplifier (Op-Amp) is an integrated
circuit that uses external voltage to amplify the input
through a very high gain.
FIG-1: What an Op-Amp looks like to a lay-person

5. What is an Op-Amp?
(Pin Diagram)
There are 8 pins in a common Op-Amp IC, like the IC741
which is used in many instructional courses.
FIG-2: What an Op-Amp looks like to an engineer

6. Op-Amp Characteristics
 Infinite open-loop gain G = vout / vin
 Infinite input impedance
 Infinite output voltage range
 Zero output impedance
 Zero noise
 Infinite power supply rejection ratio.

7. Types of Op-Amps
 Inverting
 Non-inverting
 Summing amplifier
 The voltage follower
 Integrator
 Differentiator

8. Applications of Op-Amps
 Comparator
 Integration and differentiation
 Charge amplifier
 Capacitance multiplier
 Oscillators
 Filters
 Audio and video preamplifiers and buffers
 Voltage regulator and current regulator
 Digital-to-analog converter

9. THANKS TO
ALL

10. THANKS TO
ALL