- Rail-to-rail output
- Easily drives a 2kΩ load of 4mV at each supply rail
- Superior audio signal fidelity optimized
- Output short-circuit protection
- High output driver (> 300 mA)
- Diammonium phosphate packets can be exposed in small SOICs
illustrate
The LME49726 is a low distortion, low noise, rail-to-rail output op amp audio optimized, high performance, high fidelity application, and fully specified. The LME49726 provides excellent audio performance and superior audio signal amplification. The LME49726 boasts a very low THD+N for demanding audio applications. To ensure that the most challenging loads are driven without compromise, the LME49726 delivers output currents greater than 300mA at 5V. In addition, the dynamic range maximizes a 4mV2kΩ load within either supply voltage within the output stage driver.
The LME49726 has a supply voltage range of 2.5V to 5.5V. The input circuitry of the LME49726 maintains excellent common-mode and power supply rejection over this supply voltage range, as well as maintains its low input bias current. The LME49726 is unity-gain stable.
Main specifications
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■ Supply voltage range
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2.5V to 5.5V
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■ Quiescent current, per amplifier At 5V
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0.7 mA (typical)
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■ THD + NtargetV = 1， fIn RL = 10KΩ= 1kHz,
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（VOUT= 3.5VPP，V DD= 5.0V）
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0.00008% (typical)
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（VOUT= 1.5VPP，V DD= 2.5V）
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0.00002% (typical)
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■ Equivalent input noise （F = 10K）
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8.3nV / √ ^ Hz (typical)
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■ Slew rate
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±3.7V/μs typical
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■ Gain-bandwidth product
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6.25MHz (typical)
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■ Open-loop gain（RL =10KΩ）
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120 dB (typical)
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■ Input bias current
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0.2pA (typical)
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■ Input offset voltage
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0.5mV (typical)
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■ PSRR (DC)
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104 dB (typical)
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apply
- Portable audio amplification
- Preamps and multimedia
- Equalization and crossover networks
- Line drivers and receivers
- Active filters
- The gain stage of the DAC's I-V converter
- ADC front-end signal conditioning
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