LM386 Low
Voltage Audio Power Amplifier
January 2000
LM386 Low
Voltage Audio Power Amplifier
General 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
n n n n n n n n n Battery operation Minimum external parts Wide...