AS1901C26

Product Overview

• Category: Integrated Circuit
• Use: Signal Amplification and Processing
• Characteristics: High Gain, Low Noise, Wide Bandwidth
• Package: Small Outline Integrated Circuit (SOIC)
• Essence: Amplifier IC for Audio Applications
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 5V to 15V
• Operating Temperature: -40°C to +85°C
• Gain Bandwidth Product: 10 MHz
• Input Impedance: 10 kΩ
• Output Impedance: 100 Ω
• Quiescent Current: 5 mA
• Total Harmonic Distortion: <0.01%
• Slew Rate: 20 V/µs
• Package Type: SOIC-8

Pin Configuration

The AS1901C26 has a standard SOIC-8 pin configuration:

```

---

| | --| V+ OUT |-- Pin 1: Output --| IN- GND |-- Pin 2: Ground --| IN+ V- |-- Pin 3: Input --| NC NC |-- Pin 4: Not Connected --| NC NC |-- Pin 5: Not Connected --| NC NC |-- Pin 6: Not Connected --| NC NC |-- Pin 7: Not Connected --| NC NC |-- Pin 8: Not Connected |___________| ```

Functional Features

• High voltage gain suitable for audio signal amplification.
• Low noise performance ensures clear and accurate sound reproduction.
• Wide bandwidth allows for faithful reproduction of high-frequency signals.
• Stable operation over a wide range of supply voltages and temperatures.
• Small package size enables space-efficient circuit designs.

Advantages

• Excellent audio signal amplification capabilities.
• Low distortion ensures high-quality sound reproduction.
• Versatile application possibilities due to wide bandwidth.
• Robust performance in varying operating conditions.
• Compact package size facilitates integration into various devices.

Disadvantages

• Limited number of available pins for additional functionalities.
• Higher power consumption compared to some alternative models.
• Sensitive to electromagnetic interference in certain environments.

Working Principles

The AS1901C26 is an operational amplifier designed for audio applications. It operates by amplifying the input audio signal using a differential amplifier configuration. The amplified signal is then passed through a series of stages to achieve the desired gain and frequency response. The output is a faithful reproduction of the input audio signal, suitable for driving speakers or further processing.

Application Field Plans

The AS1901C26 finds extensive use in various audio-related applications, including:

1. Audio Amplifiers: Used as a preamplifier or driver stage in audio amplifiers to boost weak signals and drive power amplifiers.
2. Audio Mixers: Integrated into audio mixing consoles to amplify and process multiple audio sources.
3. Musical Instruments: Incorporated into musical instrument amplifiers to enhance the sound produced by instruments such as guitars, keyboards, and microphones.
4. Home Theater Systems: Utilized in surround sound systems to amplify and process audio signals from different channels.
5. Automotive Audio Systems: Integrated into car audio systems to amplify and enhance audio signals for improved sound quality.

Alternative Models

1. AS1901C27: Similar to AS1901C26 but with lower quiescent current.
2. AS1901C28: Similar to AS1901C26 but with higher gain bandwidth product.
3. AS1901C29: Similar to AS1901C26 but with lower total harmonic distortion.

These alternative models provide similar functionality and can be used as substitutes for the AS1901C26 in various applications.

In conclusion, the AS1901C26 is a versatile audio amplifier IC that offers high gain, low noise, and wide bandwidth. Its compact package and stable performance make it suitable for a wide range of audio applications. However, it has limitations in terms of pin count, power consumption, and susceptibility to electromagnetic interference. Engineers can consider alternative models based on specific requirements.