- Superior audio signal fidelity is optimized
- Output short-circuit protection
- PSRR and CMRR over 120 dB (typical)
illustrate
LME49725 is part of a family of ultra-low distortion, low noise, high slew rate operational amps that are optimized and fully specified for high-performance, high-fidelity applications. Combined with the country's most advanced circuit design and advanced cutting-edge process technology, LME49725 audio op amplifier provides excellent audio performance and superior audio signal amplification. LME49725 combined with very low voltage-noise density (3.3nV/) √ ^Hz) with a very low THD + N (0.00004%), easily meeting the most demanding audio applications. To ensure that the most challenging loads are uncompromising drives, LME49725 ± 15V/μs slew rate and output current ± 22 mA capability. In addition, the dynamic range is maximized, driving a 2KΩ load of 1V for any supply voltage in the range of 1.4V and an output stage when driving a 600Ω load internally.
Some PowerWise ® energy-efficient solutions in the home consume only 3.0 milliamps of power supply current LME49725 each amplifier while providing superior performance for high-performance, high-fidelity applications.
LME49725 excellent CMRR (120 dB), (PSRR120 dB), and V OS (0.5mV) give the amplifier excellent op-amp DC performance.
LME49725 has a wide supply voltage range ± 4.5V to ± 18V. LME49725 input circuitry maintains excellent common-mode and supply rejection over this supply voltage range, as well as maintaining its low input bias current. LME49725 is stable unit gain. The audio op-amp achieves excellent AC performance with high values of up to 100pF for complex loads while driving.
LME49725 is an 8-pin narrow-body SOIC.
Key specifications:
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■ Supply voltage range
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± 4.5V to ± 18V
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■ THD + N (A V = 1, V OUT = 3V RMS, F IN = 1kHz)
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R L = 2kΩ
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0.00004% (typical)
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| R L =600Ω |
0.00004% (typical)
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■ Quiescent current, per amp
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3.0 mA (typical)
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■ Input noise density
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3.3nV / √ ^ Hz (typical)
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■ Swing rate
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± 15V/μs (typical)
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■ Gain bandwidth accumulation
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40MHz (typical)
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■ Open-loop gain (R L = 600Ω)
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135 dB (typical)
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■ Input bias current
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15nA (typical)
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■ Input offset voltage
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0.5mV (typical)
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■ DC gain linear error
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0.000009% (typical)
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apply
- Audio amplification
- preamplifier
- multimedia
- Phono preamp
- Professional audio
- Equalization and crossover networks
- Line driver
- Line receiver
- Active filter
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