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LME49871MA Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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LME49871MA Datasheet(HTML) 1 Page - National Semiconductor (TI) |
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1 / 14 page  April 28, 2008 LME49871 High Performance, High Fidelity Current Feedback Audio Operational Amplifier General Description The LME49871 is an ultra-low distortion, low noise, ultra high slew rate current feedback operational amplifier optimized and fully specified for high performance, high fidelity applica- tions. Combining advanced leading-edge process technology with state-of-the-art circuit design, the LME49871 current feedback operational amplifier delivers superior signal ampli- fication for outstanding performance. Operating on a wide supply range of ±5V to ±22V, the LME49871 combines ex- tremely low voltage noise density (1.9nV/ √Hz) with very low THD+N (0.00012%) to easily satisfy the most demanding ap- plications. To ensure that the most challenging loads are driven without compromise, the LME49871 has a high slew rate of ±1900V/ μs and an output current capability of ±100- mA. Further, dynamic range is maximized by an output stage that drives 150 Ω loads to within 2.9V of either power supply voltage. The LME49871 's outstanding CMRR (88dB), PSRR (102dB), and V OS (0.05mV) give the amplifier excellent operational amplifier DC performance. The LME49871 is available in an 8–lead narrow body SOIC. Demonstration boards are available. Key Specifications ■ Power Supply Voltage Range ±5V to ±22V ■ THD+N (A V = 1, RL = 100Ω, VOUT = 2VP-P, f = 1kHz) 0.00021% (typ) ■ THD+N (A V = 1, RL = 600Ω, VOUT = 1.4VRMS, f = 1kHz) 0.00012% (typ) ■ Input Noise Density 1.9nV/ √Hz (typ) ■ Slew Rate ±1900V/ μs (typ) ■ Bandwidth (A V = 1, RL= 2kΩ, RF = 800Ω) 213MHz (typ) ■ Input Bias Current 1.8μA (typ) ■ Input Offset Voltage 0.05mV (typ) ■ PSRR 102dB (typ) ■ CMRR 90dB (typ) Features ■ Easily drives 150Ω loads ■ Optimized for superior audio signal fidelity ■ Output short circuit protection ■ SOIC package Applications ■ Ultra high quality audio amplification ■ High fidelity preamplifiers ■ High fidelity multimedia ■ State of the art phono pre amps ■ High performance professional audio ■ High fidelity equalization and crossover networks ■ High performance line drivers ■ High performance line receivers ■ High fidelity active filters © 2008 National Semiconductor Corporation 300426 www.national.com |
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