LM12458CIVF

Product Overview

Category: Integrated Circuit (IC)

Use: LM12458CIVF is a high-performance operational amplifier designed for use in various applications such as audio amplification, signal conditioning, and voltage amplification.

Characteristics: - High gain and bandwidth - Low input offset voltage - Low noise - Wide supply voltage range - Rail-to-rail output swing capability

Package: LM12458CIVF is available in a small outline package (SOP) with 14 pins.

Essence: This IC is essential for amplifying weak signals and providing accurate and stable amplification in electronic circuits.

Packaging/Quantity: LM12458CIVF is typically sold in reels or tubes containing multiple units. The exact quantity depends on the manufacturer's packaging specifications.

Specifications

• Supply Voltage Range: ±2V to ±18V
• Input Offset Voltage: 1mV (maximum)
• Gain Bandwidth Product: 1MHz (typical)
• Input Bias Current: 20nA (typical)
• Slew Rate: 0.5V/µs (typical)
• Output Current: 40mA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LM12458CIVF IC has 14 pins arranged as follows:

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| | --| V+ OUT |-- Pin 1 --| IN- NC |-- Pin 2 --| IN+ IN- |-- Pin 3 --| NC IN+ |-- Pin 4 --| OUT V- |-- Pin 5 --| V- NC |-- Pin 6 --| NC V+ |-- Pin 7 --| IN- OUT |-- Pin 8 --| IN+ IN- |-- Pin 9 --| NC IN+ |-- Pin 10 --| OUT V- |-- Pin 11 --| V- NC |-- Pin 12 --| NC V+ |-- Pin 13 --| IN- OUT |-- Pin 14 |___________| ```

Functional Features

1. High Gain: LM12458CIVF offers a high voltage gain, making it suitable for applications requiring signal amplification.
2. Low Noise: The IC has low noise characteristics, ensuring minimal interference in sensitive circuits.
3. Rail-to-Rail Output Swing: It provides an output swing that covers the entire supply voltage range, allowing maximum utilization of the available dynamic range.
4. Wide Supply Voltage Range: The IC can operate with a wide range of supply voltages, providing flexibility in various circuit designs.

Advantages and Disadvantages

Advantages: - High gain and bandwidth enable accurate signal amplification. - Low input offset voltage ensures precise amplification without significant errors. - Low noise performance allows for clean signal processing. - Rail-to-rail output swing capability maximizes dynamic range utilization. - Wide supply voltage range enhances circuit design flexibility.

Disadvantages: - Limited slew rate may restrict the amplification of fast-changing signals. - Output current limitations may not be suitable for high-power applications.

Working Principles

LM12458CIVF operates based on the principles of operational amplifiers. It utilizes differential inputs to amplify the voltage difference between the input terminals. The amplified output is then fed back to the input through a feedback network, which helps control the gain and stability of the amplifier.

Detailed Application Field Plans

The LM12458CIVF IC finds applications in various fields, including: 1. Audio Amplification: It can be used in audio systems to amplify weak audio signals from microphones or other sources. 2. Signal Conditioning: The IC is suitable for conditioning sensor signals before further processing or analysis. 3. Voltage Amplification: LM12458CIVF can amplify low voltage signals to higher levels, making it useful in voltage amplification circuits.

Detailed and Complete Alternative Models

1. LM324: A quad operational amplifier with similar characteristics and pin configuration.
2. TL074: A high-speed JFET-input operational amplifier offering comparable performance.
3. AD8628: A precision rail-to-rail output operational amplifier with low noise characteristics.

These alternative models provide similar functionality and can be considered as substitutes for LM12458CIVF based on specific requirements.

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