LM358 Datasheet: A Comprehensive Guide to the LM358 Operational Amplifier

Introduction:

The LM358 is a widely used operational amplifier (op-amp) that offers a broad range of applications due to its versatility and affordability. In this article, we will provide a detailed overview of the LM358 datasheet, covering its features, pin configuration, electrical characteristics, and application circuits.

Whether you are an electronics enthusiast or a professional engineer, this comprehensive guide will serve as a valuable resource for understanding and utilizing the LM358 op-amp effectively.

LM358 Datasheet Features:

The LM358 datasheet outlines various features that make it an ideal choice for different electronic projects. Some of the key features include:

Dual Operational Amplifier: The LM358 consists of two independent, high-gain, internally frequency compensated op-amps, making it suitable for applications requiring multiple amplifiers.

Low Power Consumption: The LM358 operates on low power, making it energy-efficient and well-suited for battery-powered applications.

Wide Supply Voltage Range: The LM358 can operate within a wide supply voltage range, typically between 3V and 32V, making it compatible with various power sources.

Low Input Bias Current: With low input bias current, the LM358 minimizes the impact of input impedance on the overall circuit performance.

High Open-Loop Gain: The op-amp has a high open-loop gain, allowing it to provide accurate amplification and signal processing.

Pin Configuration: The LM358 datasheet provides a pin configuration diagram to help users understand how to connect the op-amp correctly. The package options available for the LM358 include the 8-pin DIP (Dual In-line Package) and the SOIC (Small Outline Integrated Circuit) package. The pin configuration typically consists of:

• VCC+: Positive power supply input.
• VCC-: Negative power supply input (or ground).
• Input 1: Non-inverting input of the first op-amp.
• Input 2: Inverting input of the first op-amp.
• Output 1: Output of the first op-amp.
• Input 3: Non-inverting input of the second op-amp.
• Input 4: Inverting input of the second op-amp.
• Output 2: Output of the second op-amp.

Electrical Characteristics

The LM358 datasheet provides a detailed overview of the electrical characteristics of the op-amp, including parameters such as input offset voltage, input bias current, supply voltage rejection ratio, common-mode rejection ratio, output voltage swing, and more. These specifications help users understand the limitations and performance capabilities of the LM358 op-amp.

Application Circuits

The LM358 datasheet offers a range of application circuits that showcase the versatility of the op-amp. These circuits include:

Amplifiers: The LM358 can be used as a voltage amplifier, inverting amplifier, non-inverting amplifier, and differential amplifier, depending on the desired application.

Filters: By incorporating external passive components, the LM358 can be used to create low-pass, high-pass, band-pass, and band-stop filters for signal conditioning. Read More here : Low Pass filter

Oscillators: The op-amp can be used to construct various oscillators such as the Wien bridge oscillator and the phase-shift oscillator, enabling the generation of different waveforms.

Comparators: The LM358 can be configured as a comparator to compare two input voltages and provide a digital output based on the comparison result.

equivalent of LM358

The LM358 operational amplifier (op-amp) has several equivalent devices that can be used as alternatives in electronic circuits. Some commonly used equivalents of the LM358 include:

UA741: The UA741 is a popular general-purpose op-amp that shares similar specifications and pin configuration with the LM358. It is widely available and can be used as a drop-in replacement in many applications.

LM324: The LM324 is a quad op-amp that consists of four independent amplifiers. While it offers more amplifiers than the dual op-amp LM358, it can still be used as a substitute in circuits where only two amplifiers are needed.

TLC272: The TLC272 is a low-power dual op-amp that operates at lower supply voltages than the LM358. It is suitable for battery-powered applications and offers low input bias currents.

TL082: The TL082 is a dual high-speed JFET-input operational amplifier. It provides high slew rate and wide bandwidth, making it suitable for applications that require fast signal processing.

LM358N: The LM358N is a variant of the LM358 that has a wider temperature range and improved electrical characteristics. It can be used as a substitute when operating in extreme temperature conditions or when higher performance is required.

When selecting an equivalent device for the LM358, it is important to consider the specific requirements of the circuit and choose an op-amp with similar specifications, pin configuration, and operating characteristics to ensure proper functionality.

Please note that while these devices are commonly used as equivalents to the LM358, it is always recommended to refer to the datasheets and compare the specifications to ensure compatibility and proper performance in your specific application.

Conclusion

The LM358 datasheet serves as a comprehensive resource for understanding the functionality, pin configuration, electrical characteristics, and application circuits of the LM358 operational amplifier. By referring to this detailed guide, users can gain a deeper understanding of the LM358 op-amp and harness its capabilities in their electronic projects.

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