LM386 is a low power audio frequency amplifier which is very commonly used in small audio amplifiers. The IC consumes very less power and hence can be operated using a 9V battery easily. It can easily drive an 8-ohm speaker with a variable gain of 20 to200. Volume control and gain control is also possible in this.
Supply Voltage: 4-15V
Quiescent Power: 24mW @ 6V
Analog input voltage 0.4V (maximum)
Voltage Gain: 20 to 200 (26dB to 46dB)
PSRR: 50dB
Speaker impedance 4Ω
Available in 8-Pin PDIP,SOIC and VSSOP packages
Application
AM and FM Radio amplifiers
Portable music players
Low Power Audio amplifiers
Wienbridge oscillator
Power Amplifiers
Audio boosters