700-mW, mono, 5- to 18-V, analog input Class-AB audio amplifier

The LM386M-1 and LM386MX-1 are power

amplifiers 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 increases the gain to any value

from 20 to 200.

The inputs are ground referenced while

the output automatically biases to one-half the supply voltage. The quiescent power

drain is only 24 mW when operating from a 6-V supply, making the LM386M-1 and

LM386MX-1 prefered for battery operation.