LM386 - Low Voltage Power Amplifier - DIP IC

LM386 - Low Voltage Power Amplifier - DIP IC

The LM386 is a highly efficient power amplifier specifically designed for low-voltage consumer electronics. With an internally preset gain of 20, it minimizes the need for external components. However, by adding a resistor and capacitor between pins 1 and 8, the gain can be adjusted up to 200, offering exceptional versatility for various applications.

This amplifier features ground-referenced inputs and an output automatically biased at half the supply voltage. Operating at just 24 milliwatts on a 6-volt supply, the LM386 is optimized for battery-powered devices, making it an excellent choice for portable systems.

Key Features

• Battery-Friendly Design: Optimized for minimal power consumption.
• Minimal External Components: Simplifies circuit design.
• Wide Voltage Range: Operates between 4V–12V or 5V–18V.
• Low Quiescent Current: Consumes only 4 mA, enhancing energy efficiency.
• Flexible Gain Options: Adjustable voltage gain ranging from 20 to 200.
• Ground-Referenced Input: Ensures stable performance.
• Self-Biased Output Voltage: Centers at half the supply voltage for consistent operation.
• Low Distortion: Delivers clear and accurate audio signals.

Applications
The LM386 is ideal for a wide array of audio and signal amplification tasks, including:

• AM/FM radio amplifiers
• Portable tape players
• Intercom systems
• Television sound systems
• Line and ultrasonic drivers
• Small servo motor control
• Power converters