MC33201/2/4, NCV33202/4, 12V Low Noise, Rail-to-Rail I/O, High Output Drive, Operational Amplifiers, ON Semiconductor The ON Semiconductor MC33201/2/4, NCV33202/4 Op Amps provide rail-to-rail operation on both the input and output. Drive inputs as high as 200 mV beyond the supply rails without phase reversal on the outputs, and the output can swing within 50 mV of each rail. This rail-to-rail operation enables you to make full use of the supply voltage range available. Output current boosting techniques provide a high output current capability while keeping the drain current of the amplifier to a minimum. Low noise and distortion with a high slew rate and drive capability make them ideal for audio applications.