- Easily drive 600Ω loads
- Superior audio signal fidelity is optimized
- Output short-circuit protection
- PSRR and CMRR over 120 dB (typical)
illustrate
LME49722 is part of a series of ultra-low distortion, low noise, high slew rate operational amplifiers, high performance, high fidelity applications, fully optimized and specified. Combined with the state-of-the-art circuit design and advanced cutting-edge process technology, LME49722 audio op-amplifier can provide excellent audio performance and superior audio signal amplification. LME49722 combined with very low voltage-noise density (1.9nV/) √ Hz) with a very low THD+N (0.00002%), easily meeting the most demanding audio applications. To ensure that the most challenging loads are uncompromising drives, LME49722 boasts a high slew rate of ±22V/μs and an output current capability of ±28 mA. In addition, the dynamic range maximizes the drive of a 1V output stage of any supply voltage over a load range of 2kΩ.
LME49722 has a wide supply voltage range ± 2.5V to ± 18V. LME49722 maintains excellent common-mode and supply rejection over this supply voltage range with low input bias current. The op-amp achieves excellent AC performance with a gain value greater than 2 high with complex loads up to 100pF while driving. Directly similar to the LME49720, the LM4562 and LME49860 chips are interchangeable.
Key specifications:
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■ Wide operating voltage range
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± 2.5V to ± 18V
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■ Equivalent noise (Frequency = 1kHz)
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1.9nV / √ ^ Hz (typical)
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■ Equivalent noise (Frequency = 10Hz)
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2.8nV / √ ^ Hz (typical)
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■ PSRR
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120 dB (typical)
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■ Swing rate
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±22V/μs (typical)
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■ THD + N (A V = 1, V OUT = 3V RMS = 1kHz, f at )
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R L = 2kΩ
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0.00002% (typical)
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| R L =600Ω |
0.00002% (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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50nA (typical)
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■ Voltage offset
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± 0.02mV (typical)
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apply
- Ultra-high-quality audio amplification
- Hi-fi preamp, phono preamp, and multimedia
- High-performance professional audio
- Active filters for high-fidelity equalization and crossover networks
- High-performance line drivers and receivers
- Low-noise industrial applications, including test, measurement, and ultrasonics
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