Thin Solid films 279

A power amplifier circuit including a low power output general purpose operational amplifier. The circuit provides an output voltage swing far greater in magnitude than the output voltage swing of the operational amplifier and with a faster response than the slew rate of the operational amplifier. The circuit, which is complementary, includes voltage dividers which couple the output of the operational amplifier to constant current mode driver transistors. Power transistors amplify the output of the constant current mode transistors to provide a high power low distortion output.