The LM386G-S08-R is a low-voltage audio power amplifier from United Test and Assembly Center (UTC). It is designed for low power voltage gain and is popularly used in battery-powered devices. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pins 1 and 8 will increase the gain to any value up to 200.

Applications

• Portable Audio Amplifiers: Amplifies audio signals in portable devices such as radios, MP3 players, and small speakers.
• Line Drivers: Serves as a line driver for transmitting audio signals over short distances in audio systems and communication devices.
• Servo Motor Amplifiers: Provides amplification for servo motor control signals in robotics and automation systems.
• Power Converters: Employed in power converter circuits to boost voltage or current levels in electronic devices.
• Ultrasonic Drivers: Used as a driver for ultrasonic transducers in cleaning equipment, medical devices, and industrial applications.

Features

• Low Quiescent Current Drain: Minimizes power consumption in standby mode, extending battery life in portable applications.
• Voltage Gains from 20 to 200: Offers adjustable gain settings to accommodate a variety of input signal levels and output requirements.
• Wide Supply Voltage Range: Operates effectively with a range of supply voltages, providing flexibility in power supply options.
• Minimum External Parts: Requires few external components for operation, simplifying circuit design and reducing component count.
• Low Distortion: Delivers clean and accurate audio amplification with minimal signal distortion.

Benefits

• Cost-Effective: Provides an economical solution for audio amplification needs in budget-sensitive applications.
• Ease of Use: Simplifies circuit design and reduces assembly time with its minimal external component requirements.
• Compact Size: Enables integration into space-constrained devices and portable applications.
• Battery-Friendly: Extends battery life in portable devices due to its low power consumption characteristics.
• Versatile: Suitable for a wide range of audio amplification applications due to its adjustable gain settings and wide supply voltage range.

Additional Details

The LM386G-S08-R is available in an S08 package. The temperature range is specified in the datasheet. The LM386 is a very versatile amplifier. For example, adding a potentiometer allows for volume control. Bypass pins provide ripple rejection, etc.