LM384

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LM384 Features

• Wide supply voltage range: 12V to 26V
• Low quiescent power drain
• Voltage gain fixed at 50
• High peak current capability: 1.3A
• Input referenced to GND
• High input impedance: 150k
• Low distortion: 0.25% (P_O=4W, R_L=8)
• Quiescent output voltage is at one half of the supply voltage
• Standard dual-in-line package

LM384 Description

The LM384 is a power audio amplifier for consumer applications. In order to hold system cost to a minimum, gain is internally fixed at 34 dB. A unique input stage allows ground referenced input signals. The output automatically self-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. A copper lead frame is used with the center three pins on either side comprising a heat sink. This makes the device easy to use in standard p-c layout.

Uses include simple phonograph amplifiers, intercoms, line drivers, teaching machine outputs, alarms, ultrasonic drivers, TV sound systems, AM-FM radio, sound projector systems, etc. See AN-69 for circuit details.

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