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Home > Other > LM358N Operational Amplifier: Pinout, Datasheet, Circuit, and Uses

LM358N Operational Amplifier: Pinout, Datasheet, Circuit, and Uses

Update Time: 2023-11-29 13:45:18

Contents

Operational amplifiers, or op-amps, are essential components in the world of electronics. They serve as versatile building blocks in various applications, from simple amplification to complex signal processing. One such op-amp, the LM358N, has gained recognition for its efficiency and reliability in numerous circuits. In this article, we'll delve into the LM358N op-amp, exploring its pinout, circuit, features, applications, advantages, datasheet, etc, and the difference between LM358N and LM358P.


Overview of LM358N


The LM358N integrates two autonomous, high-gain op-amps, internally pre-compensated for frequency response. These op-amps are thoughtfully engineered for operation across a broad spectrum of single power supply voltage ranges. Importantly, their power consumption remains consistent, irrespective of the specific voltage level of the power supply.


This versatile component finds applications in transducer amplifiers, DC gain blocks, and a wide array of traditional op-amp circuits. What's noteworthy is that these circuits can be seamlessly integrated into single power supply systems. A prime example is their direct compatibility with the standard +5 V voltage common in logic systems. This ensures they effortlessly serve as the required interface electronics, eliminating the need for extra power supplies.


In their linear operating mode, these op-amps exhibit an input common-mode voltage range that encompasses ground. Furthermore, the output voltage can swing all the way to ground, all while operating from a single power supply voltage.


LM358N Pinout

LM358N Pinout.jpg

Pin configuration

Pin No.Pin NameDescription
1OUTPUT1Output of Op-Amp 1
2INPUT1-Inverting Input of Op-Amp 1
3INPUT1+Non-Inverting Input of Op-Amp 1
4VEE, GNDGround or Negative Supply Voltage
5INPUT2+Non-Inverting Input of Op-Amp 2
6INPUT2-Inverting Input of Op-Amp 2
7OUTPUT2Output of Op-Amp 2
8VccPositive Supply Voltage


LM358N Features and Specifications


  • Internally pre-compensated for frequency response

  • High DC voltage gain: 100 dB

  • Broad bandwidth (unity gain): 1.1 MHz (temperature compensated)

  • Negligible supply current per operator, practically unaffected by supply voltage

  • Minimal input bias current: 20 nA (temperature compensated)

  • Low input offset voltage: 2 mV

  • Minimal input offset current: 2 nA

  • Extensive power supply range: 3V to 32V (single supply); ±1.5V to ±16V (dual supplies)

  • Input common-mode voltage range covers negative rails

  • Differential input voltage range matches the power supply voltage

  • Substantial output voltage swing from 0 V to (VCC+ -1.5 V)

  • Extremely low supply current drain (500 µA) - practically independent of supply voltage


Note: Comprehensive technical details can be available in the LM358N datasheet provided at the end of this page.

LM358N Circuit


LM358N Schematic Diagram

LM358N Schematic Diagram.png


LM358N Application Circuits


  • Power Amplifier

Power Amplifier.jpg


  • LED Driver

LED Driver.jpg


  • Voltage Controlled Oscillator (VCO)

Voltage Controlled Oscillator (VCO).jpg


  • DC Coupled Low-Pass RC Active Filter

DC Coupled Low-Pass RC Active Filter.jpg


  • AC Coupled Inverting Amplifier

AC Coupled Inverting Amplifier.jpg



LM358N Advantages


  • Contains two internally pre-compensated operational amplifiers

  • Eliminates the requirement for dual power supplies

  • Permits direct sensing close to ground (GND), with VOUT also reaching ground

  • Compatible with various logic types

  • Low power drain suitable for battery-operated applications


LM358N Equivalents


LM358N belongs to LM358 series, it is equivalent to one-half of the LM324. These include LM158, LM258, LM2904, and LM2409. Although these ICs may have slight differences in thermal properties, they are generally suitable replacements for most projects.


LM358N Applications


  • Transducer amplifiers

  • DC gain blocks

  • Conventional op-amp circuits

  • Integrators

  • Differentiators

  • Summer circuits

  • Adder configurations

  • Voltage follower setups

  • Digital multimeters

  • Oscilloscopes

  • Comparators for loop control and regulation


LM358N Package

DIP8 Package Mechanical Drawing.png

DIP8 Package Mechanical Drawing


DIP8 Package Mechanical Data.png

DIP8 Package Mechanical Data


LM358N vs LM358P

LM358 is a dual operational amplifier. It contains two independent operational amplifiers with high gain and internal frequency compensation. It  

is suitable for a wide range of supply voltage, making it ideal for both single-supply and dual-supply operation. Under recommended operating 

conditions, the supplcurrent is independent of the supply voltage. Its applications include sensor amplifiers, DC gain modules, and any situation 

where operational amplifiers are used with single-supply voltage. We have already provided a detailed introduction to LM358 Dual Op-Amp in  

the last article.


Features:


  • Internal frequency compensation.

  • High DC voltage gain (approximately 100dB).

  • Unity-gain bandwidth (approximately 1MHz).

  • Wide supply voltage range: single supply (3-30V), dual supply (±1.5 to ±15V).

  • Slew rate (0.3V/μs).

  • Low power consumption, suitable for battery-powered devices.

  • Low input bias current.

  • Wide common-mode input voltage range, including ground.

  • Wide differential input voltage range, equal to the supply voltage range, with a large output voltage swing (0 to Vcc-1.5V).


Difference between LM358N and LM358P


LM358P should be single in-line packaging (SIP). The naming conventions for different manufacturers vary. TI's LM358P comes in a DIP package (dual in-line package), while in ST's products, LM358P represents a TSSOP package. LM358N is the model for DIP packaging products from manufacturers such as ST, Philips, ON, NS, and others. Regardless of the package type, the specifications for LM358 from various manufacturers are generally the same.


LM358N Datasheet

Download LM358N datasheet PDF.



Final Thought about LM358N


In conclusion, the LM358N operational amplifier has proven itself as a reliable and versatile component in the world of electronics. Its cost-effectiveness, low power consumption, and wide range of applications make it a top choice for engineers and hobbyists alike.


Read More


Previous: Understanding the 74HC00: Comprehensive Guide to Usage

Next: The Ultimate Guide to Pull-up and Pull-down Resistor

FAQ

  • What is the use of LM358N?
  • LM358N is versatile and can be employed as a transducer amplifier, DC gain block, and more.

  • What does LM358 op-amp do?
  • The LM358 operational amplifier streamlines circuit design through improved features like unity-gain stability, reduced maximum offset voltage of 3 mV, and a lower quiescent current of 300 µA per amplifier (typical).

  • What is the difference between LM358 and 358n?
  • Both products will exhibit a high degree of similarity, boasting nearly identical specifications. However, it's important to note that they feature distinct semiconductor dies and manufacturing processes.

  • What is the gain of LM358?
  • This amplifier module utilizes the LM358 operational amplifier, renowned for its high gain and frequency compensation. It is purpose-built to function seamlessly across a broad spectrum of voltage ranges while providing a circuit design with a 100-fold amplification. Additionally, the module features an onboard 10K adjustable resistance, allowing users to fine-tune the amplification as needed.

  • What circuits use LM358?
  • The LM358 finds extensive utility in various applications, encompassing operational amplifier (Op-amp) circuits, transducer amplifiers, DC gain blocks, comparator circuits, active filters, and current loop transmitters for the 4 to 20mA range, among others.

  • What is the purpose of a dual op-amp?
  • Operational amplifiers (Op-Amps) are commonly employed to either buffer or magnify signals.

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