The LM380 is a power audio amplifier for consumer applications.In order to hold system cost to a minimum, gain is internallyfixed at 34 dB. A unique input stage allows groundreferenced input signals. The output automaticallyself-centers to one-half the supply voltage.The output is short circuit proof with internal thermal limiting.The package outline is standard dual-in-line. The LM380Nuses a copper lead frame. The center three pins on eitherside comprise a heat sink. This makes the device easy touse in standard PC layouts.Uses include simple phonograph amplifiers, intercoms, linedrivers, teaching machine outputs, alarms, ultrasonic drivers,TV sound systems, AM-FM radio, small servo drivers,power converters, etc.