LM386 National Semiconductor Low Voltage Audio Power Amplifier Data Sheet
Download Datasheet for National Semiconductor LM386 Low Voltage Audio Power Amplifier [10 pages DS006976 1997 pdf/zip]
Description
The LM386 is a power amplifier designed for use in low voltage consumer applications. 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.
The inputs are ground referenced while the output is automatically biased to one half the supply voltage. The quiescent power drain is only 24 milliwatts when operating from a 6 volt supply, making the LM386 ideal for battery operation.
FEATURES
– Battery operation
– Minimum external parts
– Wide supply voltage range: 4V–12V or 5V–18V
– Low quiescent current drain: 4 mA
– Voltage gains from 20 to 200
– Ground referenced input
– Self-centering output quiescent voltage
– Low distortion
– Available in 8 pin MSOP package
APPLICATIONS
– AM-FM radio amplifiers
– Portable tape player amplifiers
– Intercoms
– TV sound systems
– Line drivers
– Ultrasonic drivers
– Small servo drivers
– Power converters
CONTENTS:
– LM386 pinout
– Equivalent Schematic and Connection Diagrams
– Absolute Maximum Ratings
– Electrical Characteristics
– Application Hints
– Typical Performance Characteristics
– Typical Applications: Amplifier with Gain = 20, Amplifier with Gain = 50, Amplifier with Gain = 200, Low Distortion Power Wienbridge Oscillator, Amplifier with Bass Boost, Square Wave Oscillator, AM Radio Power Amplifier
– Physical Dimensions
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