In this ppt you should know about more information about op amp and its applications also

1. And
Applications
DEBOJYOTI ADHIKARI
ETCE ,3RD YEAR
ROLL NO-28
OPERATIONAL
AMPLIFIER

2. INTRODUCTION:
LDR SENSOR SOUND SENSOR AC CURRENT SENSOR

3. What is Operational Amplifier (Op-amp)?
Karl D. Swartzel Jr.
A direct coupled high gain amplifier
consisting of one or more differential
amplifier and followed by a level
translator and an output stage.
OP – AMP
OPERATIONAL AMPLIFIER
1967 Karl D. Swartzel Jr.
introduces op-amp that was to
become the industry standard. Op-amp
had their origins in analog computer.

4. INVERTING
INPUT
NON-
INVERTING
INPUT
INPUT STAGE
INTERMEDIATE
STAGE
LEVEL SHIFTING
STAGE
OUTPUT
STAGE OUTPUT
Internal block of Operational Amplifier

5. It is Dual Line in Package IC(DIP).There are total 8 pins in this IC. DIP is the most
common package form. It consists of an array of transistors , resistors and capacitor on
a single silicon chip.
Non-inverting
inverting

6. SL NO MODEL NO SPECIFICATION MANUFACTURER COST(APPROX.)
COST IN RUPEES ₹
PRODUCT VIEW
01 LM386 8 PIN,DIP,LO W
VOLTAGE AMPLIFIER
TEXAS
INSTRUMENT
26
02 LM741 8 PIN,CDIP,
COMPARATOR,
AMPLIFIER
NATIONAL
INSTRUMENT
15
03 LM358 PDIP, 8 PIN, LOGIC
CONTROLLER
TEXAS
INSTRUMENT
20
04 LM324 14 PIN, PDIP TEXAS
INSTRUMENT
29
05 OP07 8 PIN PDIP,NOISE
CKT,AMPLIFIER
ANALOG
DEVICES
18
LIST OF OP-AMP IC:
Various types of Op-amp IC are available in the market.
Following op-amp IC are most common:-

7. SL NO CHARACTERISTICS IDEAL OP-AMP PRACTICAL OP-AMP
01 Input impedance High
02 Output impedance 0 Low
03 Open loop gain 103 – 106
04 Slew rate Finite
05 Bandwidth Finite
06 CMRR (COMMON MODE
REJECTION RATIO)
Finite
CHARACTERISICS OF OP-AMP:

8. CONFIGURATION OF OP-AMP
It has mainly two types of Configuration.
1. Open loop Configuration
i. Inverting Mode
ii. Non-inverting Mode
iii. Differential Mode
Differential OP-AMP

9. i. Inverting Mode
ii. Non-inverting Mode
iii. Differential Mode
Non-inverting OP-AMP Inverting OP-AMP
CLOSE LOOP CONFIGURATION:

10. MATHEMATICAL
OPERATION
(ADDER,
SUBTRACTOR
ETC.)
LOGICAL
OPERATION
(COMPARATOR) AMPLIFIER
WAVEFORM
GENERATOR(SIGNAL
PROCESSING AND
CONDITIONING)
FUNCTIONAL
OPERATION(CLIPPER
, CLAMPER ETC.)
APPLICATION OF OP-AMP

11. VOLTAGE FOLLOWER INTEGRATOR COMPARATOR
FEW USES OF OP-AMP:
USE IN 555 TIMER IC

12. OP-AMP AS AN ACTIVE FILTER:
An active filter is a type of analog circuit implementing an electronic filter using
active components, typically an amplifier.
It is mainly classified into four types depend on their band of frequencies.:
1.Active LPF 2.Active HPF 3.Active BPF 4.Active BSF

13. ADVANTAGES OF OP-AMP:
1. Simplicity of design.
2. Lower parts Count.
3. Low noise.
4. Low cost.
 LIMITATION OF OP-AMP:
1. Low efficiency.
2. Can’t process high power signal.

14. CONCLUSION
CONCLUSION
• Operational amplifier have been discovered long early age of 1968 .After
a long journey of all most half a century operational amplifier still
proving worthy today. Examples integrator,voltage follower,comparator etc
So from that point of view we can imagine how important the
development of op-amp was. Without this operational amplifier a large
portion electronic circuitry can not be possible.

15. THANK YOU
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