- Easily drives 600Ω loads
- Superior audio signal fidelity optimized
- Output short-circuit protection
- PSRR and CMRR over 120 dB (typical)
- SOIC, DIP, TO-99 metal can be packed
illustrate
The LME49720 is part of a family of ultra-low distortion, low noise, high slew rate operational amplifiers, fully optimized and specified for high performance, high fidelity applications. Combined with state-of-the-art circuit design with advanced cutting-edge process technology, the LME49720 audio op amp provides superior audio signal amplification with superior audio performance. The LME49720 combines a very low voltage noise density (2.7nV/) √ ^Hz) with a negligible THD + N (0.00003%), easily suitable for the most demanding audio applications. To ensure that the most challenging loads are driven without compromise, the LME49720 boasts a high slew rate of ± 20V/μs and an output current capability of ±26 mA. In addition, dynamic range is maximized when driving an output stage within 1V and 1.4V of either supply voltage within a 2kΩ load range.
The LME49720 has excellent CMRR (120 dB), (PSRR 120 dB) and VOS（0.1mV）Amplifier: Excellent op amp DC performance.
The LME49720 has a wide supply voltage range of ± 2.5V to ± 17V. The input circuitry of the LME49720 maintains excellent common-mode and power supply rejection over this supply voltage range, as well as maintaining its low input bias current. The LME49720 is unity-gain stable. This audio op amp achieves excellent AC performance with complex loads up to 100pF high values when driving.
The LME49720 is available in an 8-pin narrow body SOIC package, an 8-pin plastic DIP and an 8-lead metal can TO-99. Demo board for each package.
Main specifications
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■ Supply voltage range
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± 2.5V to ± 17V
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■ （THD + NtargetV = 1，VIN，OUT= 3VRMS，F= at 1kHz)
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RL = 2kΩ
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0.00003% (typical)
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RL =600Ω
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0.00003% (typical)
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■ Input noise density
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2.7nV / √ ^ Hz (typical)
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■ Slew rate
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±20V/μs (typical)
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■ Gain-bandwidth product
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55MHz (typical)
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■ Open-loop gain（RL =600Ω）
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140 dB (typical)
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■ Input bias current
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10nA (typical)
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■ Input offset voltage
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0.1mV (typical)
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■ DC gain linearity error
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0.000009％
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apply
- Ultra-high-quality audio amplification
- High fidelity preamplifier
- High-fidelity multimedia
- Ampere in front of the National Art Phono Player
- High-performance professional audio
- High-fidelity equalization and crossover networks
- High-performance line drivers
- High-performance line receivers
- High-fidelity active filters
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