LM258H

Product Overview

Category: Integrated Circuit (IC)

Use: LM258H is a dual operational amplifier that is widely used in various electronic circuits for amplification, filtering, and signal conditioning purposes.

Characteristics: - Low input offset voltage - Low input bias current - High open-loop gain - Wide supply voltage range - Rail-to-rail output swing capability

Package: LM258H is available in a standard 8-pin plastic dual in-line package (DIP).

Essence: The essence of LM258H lies in its ability to provide high-performance operational amplification in a compact and versatile package.

Packaging/Quantity: LM258H is typically sold in reels or tubes containing a specified quantity of ICs, usually ranging from 50 to 1000 units per package.

Specifications

LM258H exhibits the following specifications:

• Supply Voltage Range: ±2V to ±18V
• Input Offset Voltage: 2mV (maximum)
• Input Bias Current: 20nA (maximum)
• Open-Loop Gain: 100dB (typical)
• Output Swing: Rail-to-Rail
• Slew Rate: 0.3V/μs (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The pin configuration of LM258H is as follows:

___________ VCC | 1 8 | VOUT IN- | 2 7 | IN+ IN+ | 3 6 | OUT GND | 4 5 | NC ‾‾‾‾‾‾‾‾‾‾‾‾‾

Functional Features

• Low input offset voltage ensures accurate amplification of small signals.
• High open-loop gain allows for precise signal amplification and conditioning.
• Wide supply voltage range enables operation in various power supply configurations.
• Rail-to-rail output swing capability ensures maximum utilization of the available voltage range.

Advantages and Disadvantages

Advantages: - Low input offset voltage enhances accuracy in signal processing applications. - High open-loop gain provides excellent amplification capabilities. - Wide supply voltage range allows for versatile usage in different electronic systems. - Rail-to-rail output swing capability ensures efficient utilization of the entire voltage range.

Disadvantages: - Limited output current capability may restrict usage in certain high-power applications. - Sensitivity to electromagnetic interference (EMI) can affect performance in noisy environments.

Working Principles

LM258H operates based on the principles of operational amplifiers. It utilizes differential input stages, gain stages, and output stages to amplify and condition input signals. The internal circuitry of LM258H is designed to provide high gain, low distortion, and stable operation over a wide range of operating conditions.

Detailed Application Field Plans

LM258H finds extensive application in various fields, including but not limited to:

1. Audio Amplification: LM258H can be used in audio amplifiers to enhance the volume and quality of audio signals.
2. Sensor Signal Conditioning: It can be employed to amplify and condition signals from sensors such as temperature sensors, pressure sensors, etc.
3. Active Filters: LM258H can be utilized in active filter circuits to achieve precise frequency response characteristics.
4. Instrumentation Systems: It can be integrated into instrumentation systems for accurate measurement and data acquisition purposes.
5. Control Systems: LM258H can be employed in control systems to process and amplify control signals.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to LM258H are:

1. LM358: A single operational amplifier with similar characteristics to LM258H.
2. LM324: A quad operational amplifier that provides multiple amplification channels in a single package.
3. TL072: Another dual operational amplifier with low noise and high gain characteristics.

These alternative models can be considered based on specific application requirements and design constraints.

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