DESCRIPTION
The LE507 is a low voltage class A amplifier design, primarily for low voltage and low power use. The broad application include AF output stages, RF amplifiers and output stages of the hearing instruments. The circuit is comprised of three stages all of them having access to their collectors for frequency shaping, feedback, etc. The provision for the bias network and alternative gain increase to 76 dB are included on the circuit.

FEATURES
• 76 dB of gain
• internal DC bias for I/P stage
• applications include AF output stages, hearing aids and RF amplifiers
• total harmonic distortion 1% (typical)