National Semiconductor's LM4562 dual 34V high-fidelity audio operational amplifier is said to practically eliminate distortion, with total harmonic distortion plus noise of 0.00003 percent. That performance reportedly exceeds the performance of hand-built audiophile discrete methodologies, thus setting a new standard for sound quality in high-end professional and high-quality consumer audio markets. It has wide 55-MHz gain bandwidth, 10-MHz power bandwidth.
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