# LM4562

> dual operational amplifier for high-fidelity and professional audio

**Wikidata**: [Q116258070](https://www.wikidata.org/wiki/Q116258070)  
**Source**: https://4ort.xyz/entity/lm4562

## Summary
The LM4562 is a dual operational amplifier designed for high-fidelity and professional audio applications. It is part of the LM-series integrated circuits and was developed by National Semiconductor, with sales beginning in 2007. The chip is manufactured by both National Semiconductor and Texas Instruments.

## Key Facts
- **Type**: Dual operational amplifier (op-amp) for high-fidelity and professional audio.
- **Developer**: National Semiconductor.
- **Manufacturer**: National Semiconductor and Texas Instruments.
- **Sales Start**: 2007 (as per Small Signal Audio Design).
- **Classification**: Integrated circuit model, subclass of operational amplifier.
- **Series**: Part of the LM-series integrated circuits.
- **Image**: Available at [Wikimedia Commons](https://commons.wikimedia.org/wiki/Special:FilePath/LM4562NA_dual_op_amp_01.jpg).
- **Described in**: *Small Signal Audio Design (1st edition)* under the section "The LM4562 Op-Amp."

## FAQs
### Q: What is the LM4562 used for?
A: The LM4562 is a dual operational amplifier designed for high-fidelity and professional audio applications, making it suitable for precise signal amplification in audio equipment.

### Q: Who manufactures the LM4562?
A: The LM4562 is manufactured by both National Semiconductor and Texas Instruments, a semiconductor company known for its electronics and semiconductor industry contributions.

### Q: When was the LM4562 first available for sale?
A: Sales of the LM4562 began in 2007, as documented in *Small Signal Audio Design (1st edition)*.

### Q: Is the LM4562 part of a larger series?
A: Yes, the LM4562 is part of the LM-series integrated circuits, a collection of electronic components widely used in various applications.

### Q: Where can I find an image of the LM4562?
A: An image of the LM4562 is available on [Wikimedia Commons](https://commons.wikimedia.org/wiki/Special:FilePath/LM4562NA_dual_op_amp_01.jpg).

## Why It Matters
The LM4562 plays a crucial role in the audio industry by providing high-quality amplification for professional and high-fidelity applications. As part of the LM-series integrated circuits, it benefits from a long-standing legacy of reliability and performance. Its dual operational amplifier design allows for efficient signal processing, making it a valuable component in audio equipment design. The chip’s development by National Semiconductor and subsequent manufacturing by Texas Instruments ensures its availability and compatibility with various systems. For audio engineers and enthusiasts, the LM4562 represents a trusted solution for achieving precise and high-performance audio amplification.

## Notable For
- **High-Fidelity Design**: Specifically engineered for professional audio applications, ensuring accurate signal reproduction.
- **Dual Operational Amplifier**: Its dual op-amp configuration allows for efficient signal processing in audio circuits.
- **LM-Series Affiliation**: Part of the well-established LM-series integrated circuits, known for their reliability and versatility.
- **Manufacturing Partnership**: Produced by both National Semiconductor and Texas Instruments, ensuring broad availability and compatibility.
- **Documented in Audio Literature**: Featured in *Small Signal Audio Design (1st edition)*, highlighting its significance in audio engineering.

## Body
### Overview
The LM4562 is a dual operational amplifier designed for high-fidelity and professional audio applications. It is part of the LM-series integrated circuits, a collection of electronic components widely used in various applications. The chip was developed by National Semiconductor and is manufactured by both National Semiconductor and Texas Instruments.

### Development and Availability
Sales of the LM4562 began in 2007, as documented in *Small Signal Audio Design (1st edition)*. The chip is classified as an integrated circuit model and is a subclass of operational amplifiers. It is part of the LM-series integrated circuits, which includes a variety of electronic components used in different applications.

### Technical Specifications
The LM4562 is designed for high-fidelity audio applications, making it suitable for precise signal amplification. Its dual operational amplifier configuration allows for efficient signal processing in audio circuits. The chip is described in detail in *Small Signal Audio Design (1st edition)* under the section "The LM4562 Op-Amp."

### Manufacturing and Distribution
The LM4562 is manufactured by both National Semiconductor and Texas Instruments, a semiconductor company known for its contributions to the electronics and semiconductor industry. This manufacturing partnership ensures the chip’s availability and compatibility with various systems.

### Image and Documentation
An image of the LM4562 is available on [Wikimedia Commons](https://commons.wikimedia.org/wiki/Special:FilePath/LM4562NA_dual_op_amp_01.jpg). The chip is also documented in *Small Signal Audio Design (1st edition)*, providing additional technical details and applications.

## References

1. Small Signal Audio Design (1st edition)