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LM324 Operational Amplifier IC

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LM324 Operational Amplifier op amp  IC

Quad  operational amplifier.

General purpose .

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₨ 20

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LM324 is a 14pin IC consisting of four independent operational amplifiers (op-amps) compensated in a single package. Op-amps are high gain electronic voltage amplifier with differential input and, usually, a single-ended output. The output voltage is many times higher than the voltage difference between input terminals of an op-amp.

These op-amps are operated by a single power supply LM324 and need for a dual supply is eliminated. They can be used as amplifiers, comparators, oscillators, rectifiers etc. The conventional op-amp applications can be more easily implemented with LM324.

Pin Diagram: 

LM324 PinOut | LM324N pin diagram

Pin Description: 

 Pin No
 Function
 Name
1
Output of 1st comparator
Output 1
2
Inverting input of 1st comparator
Input 1-
3
Non-inverting input of 1st comparator
Input 1+
4
Supply voltage; 5V (up to 32V)
Vcc
5
Non-inverting input of 2nd comparator
Input 2+
6
Inverting input of 2nd comparator
Input 2-
7
Output of 2nd comparator
Output 2
8
Output of 3rd comparator
Output 3
9
Inverting input of 3rd comparator
Input 3-
10
Non-inverting input of 3rd comparator
Input 3+
11
Ground (0V)
Ground
12
Non-inverting input of 4th comparator
Input 4+
13
Inverting input of 4th comparator
Input 4-
14
Output of 4th comparator
Output 4

THE OP-AMP AS A COMPARATOR

The OP-AMP can compare two signals (voltages). This is called a COMPARATOR or DIFFERENTIAL AMPLIFIER (amplifies the difference between two signals).
There are two arrangements - connection to a single rail or dual rails. The animations below show the output for each configuration:


 

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LM324 Operational Amplifier IC

LM324 Operational Amplifier IC

LM324 Operational Amplifier op amp  IC

Quad  operational amplifier.

General purpose .