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LM324 Operational Amplifier


This article will detail the LM324 amplifier. It is an operational amplifier (Op-amp) consisting of four channels. It is a low cost device with true differential inputs. For single-supply applications, the LM 324 is superior to other op amps. The LM-324 is capable of operating at voltages as low as 3V and high voltages up to 32V.

LM324 Op-amp Introduction

The LM324 is an operational amplifier consisting of four channels. It is the most commonly used amplifier due to its low cost. Each package contains four amplifiers that are superior to other amplifiers in single-supply applications. The negative supply included in the common-mode input and output range eliminates the need for external biasing. It has several different applications, such as DC gain blocks, transducer amplifiers, conventional amplifier circuits, and more.

One of the main advantages of the LM-324 is that the common-mode input range includes a negative supply, eliminating the need for external biasing. The negative supply voltage is also included in the output voltage range. The device is lead-free, halogen-free and RoHS compliant. Each package contains four amplifiers. Practical applications for the LM 324 include conventional amplifier circuits, transducer amplifiers, DC gain modules, and more. More details on the LM324, such as its pin configuration, thermal and electrical characteristics, its functions and applications, are detailed later in this tutorial.

LM324 Datasheet

LM324 Pinout

The LM324 contains four independent high-gain, frequency-compensated op amps that can be used with either a single power supply (3 to 30 V) or dual power supplies (±1.5 to ±15 V) for low power consumption. Compatible with TTL logic circuits.

LM324  pinout
LM324 pinout
  • The LM-324 has a total of fourteen (14) pins that have different individual functions associated with them.
  • All fourteen pins and their names are given in chronological order in the table below.

LM324 Configurations

A fully labeled chart for the LM 324 pin, which you can see in the image below.

LM324_configurations
LM324_configurations

LM324 application circuit diagram

 LM324 application circuit diagram
LM324 application circuit diagram

The LM324 series of operational amplifiers are inexpensive four operational amplifiers with differential input capability. It can work under a single power supply and the voltage range is 3.0V-32V or +16V.

LM324 Features

  1. Dash protection output
  2. True differential input stage
  3. Can work with a single power supply: 3V-32V
  4. Low bias current: up to 100nA (LM324A)
  5. Four operational amplifiers per package.
  6. With internal compensation.
  7. Common mode range extends to negative power
  8. Industry standard pinouts
  9. The input has electrostatic protection

LM324 Application

  • Conventional amplifier circuit
  • Transducer amplifier.
  • DC gain module.

LM324 Pacakage

The LM-324 has four different types of packages with different individual sizes. These packages include TSSOP, SOIC, CDIP and PDIP. The dimensions and dimensions of all packages for the above packages are given in the table below.

Lm324 package
Lm324 package

How does LM324 work

I will cite some circuits that use the LM324 so that you can better understand how it works.

LM324 multi-feedback feedback bandpass filter circuit

LM324 multi-feedback feedback bandpass filter circuit
LM324 multi-feedback feedback bandpass filter circuit

LM324 high impedance differential amplifier circuit

LM324 high impedance differential amplifier circuit
LM324 high impedance differential amplifier circuit

LM324 function generator circuit

LM324 function generator circuit
LM324 function generator circuit

LM324 dual four-stage filter circuit

LM324 dual four-stage filter circuit
LM324 dual four-stage filter circuit

LM324 hysteresis comparator circuit diagram

LM324 hysteresis comparator circuit diagram
LM324 hysteresis comparator circuit diagram

This is all in the LM324 introductory tutorial. I hope you enjoy this exciting tutorial. If you encounter any problems, feel free to ask me in the comments, even without any hesitation.

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