- Easily drives 600Ω loads
- Superior audio signal fidelity optimized
- Output short-circuit protection
- PSRR of 98 dB (typical) and common-mode rejection ratio (CMRR) of 106 dB (typical)
- TSSOP package
illustrate
The LME49743 is a low distortion, low noise, high slew rate operational amplifier optimized and fully specified for high performance, high fidelity applications. The LME49743 audio op amp provides superior audio performance and superior audio signal amplification. The LME49743 combines low voltage noise density (3.5nV / √ ^Hz) and THD+N (0.0001%), easily satisfying demanding audio applications. To ensure that the most challenging loads are driven without compromise, the LME49743 ± slew rate of 12V/μs and output current ± 21 mA capability.
LME49743 has excellent CMRR (106 dB), (PSRR 98 dB) and VOS（±0.15mV) gives excellent amp op amp DC performance.
The LME49743 has a wide supply voltage range of ± 4.0V to ± 17V. The input circuit of the LME49743 maintains excellent common-mode, power supply rejection, and low input bias current over this supply voltage range. The LME49743 is unity-gain stable.
The LME49743 is available with 14-pin TSSOP.
Main specifications
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■ Supply voltage range
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± 4.0V to ± 17V
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■ （THD + NtargetV = 1，VOUT= 3VRMS， fat= at 1kHz)
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RL = 2kΩ
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0.0001% (typical)
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RL =600Ω
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0.0001% (typical)
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■ Input noise density
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3.5nV / √ ^ Hz (typical)
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■ Slew rate
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±12V/μs (typical)
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■ Gain-bandwidth product
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30MHz (typical)
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■ Open-loop gain（RL =600Ω）
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110 dB (typical)
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■ Input bias current
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190nA (typical)
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■ Input offset voltage
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± 0.15mV (typical)
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apply
- Audio amplifiers and preamplifiers
- Professional audio
- Equalization and crossover networks
- Line drivers and receivers
- Active filters
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