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( File format: PDF, 1064 Kbytes )
Dual High Performance, High Fidelity Audio Operational Amplifier
National Semiconductor

Description
The LM4562 is part of the ultra-low distortion, low noise, high slew rate operational amplifier series optimized and fully specified for high performance, high fidelity applications. Combining advanced leading-edge process technology with state-of-the-art circuit design, the LM4562 audio operational amplifiers deliver superior audio signal amplification for outstanding audio performance. The LM4562 combines extremely low voltage noise density (2.7nV/ ^Hz) with vanishingly low THD+N (0.00003%) to easily satisfy the most demanding audio applications. To ensure that the most challenging loads are driven without compromise, the LM4562 has a high slew rate of 20V/s and an output current capability of 26mA. Further, dynamic range is maximized by an output stage that drives 2k? loads to within 1V of either power supply voltage and to within 1.4V when driving 600? loads. The LM4562's outstanding CMRR (120dB), PSRR (120dB), and VOS (0.1mV) give the amplifier excellent operational amplifier DC performance. The LM4562 has a wide supply range of 2.5V to 17V. Over this supply range the LM4562s input circuitry maintains excellent common-mode and power supply rejection, as well as maintaining its low input bias current. The LM4562 is unity gain stable. This Audio Operational Amplifier achieves outstanding AC performance while driving complex loads with values as high as 100pF. The LM4562 is available in 8Clead narrow body SOIC, 8Clead Plastic DIP, and 8Clead Metal Can TO-99. Demonstration boards are available for each package.
Features

???Easily drives 600? loads
???Optimized for superior audio signal fidelity
???Output short circuit protection
???PSRR and CMRR exceed 120dB (typ)
???SOIC, DIP, TO-99 metal can packages




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