LME49720 Audio Operational Amplifiers

Texas Instruments offers their LME49720 dual high performance, high fidelity audio operational amplifiers in SOIC, PDIP, and TO-99 metal can packages

Image of Texas Instruments' LME49720 Audio Operational AmplifiersTexas Instruments' LME49720 are part of the ultra-low distortion, low noise, high slew rate operational amplifier series optimized and fully specified for high performance, high fidelity applications. Combining advanced leading-edge process technology with state-of-the-art circuit design, the LME49720 audio operational amplifiers deliver superior audio signal amplification for outstanding audio performance. The LME49720 combine extremely low voltage noise density (2.7 nV/√Hz) with vanishingly low THD+N (0.00003%) to easily satisfy the most demanding audio applications.

To ensure that the most challenging loads are driven without compromise, the LME49720 have a high slew rate of ±20 V/μs and an output current capability of ±26 mA. Further, dynamic range is maximized by an output stage that drives 2 kΩ loads to within 1 V of either power supply voltage and to within 1.4 V when driving 600 Ω loads.

The LME49720's outstanding CMRR (120 dB), PSRR (120 dB), and VOS (0.1 mV) give the amplifiers excellent operational amplifier DC performance.

The LME49720 has a wide supply range of ±2.5 V to ±17 V. Over this supply range the LME49720’s input circuitry maintains excellent common-mode and power supply rejection, as well as maintaining its low input bias current. The LME49720 are unity gain stable. These audio operational amplifiers achieve outstanding AC performance while driving complex loads with values as high as 100 pF.

The LME49720 are available in 8-lead narrow body SOIC, 8-lead PDIP, and 8-lead TO-99. Demonstration boards are available for each package.

Features Specifications
  • Easily drives 600 Ω loads
  • Optimized for superior audio signal fidelity
  • Output short circuit protection
  • PSRR and CMRR exceed 120 dB (typ)
  • SOIC, PDIP, and TO-99 metal can packages
  • Power supply voltage range: ±2.5 V to ±17 V
  • THD+N (AV = 1, VOUT = 3 VRMS, fIN = 1 kHz):
    • RL = 2 kΩ: 0.00003% (typ)
    • RL = 600 Ω: 0.00003% (typ)
  • Input noise density: 2.7 nV/√Hz (typ)

LME49720 Audio Operational Amplifiers

ImageManufacturer Part NumberDescriptionAmplifier TypeAvailable QuantityView Details
IC AUDIO 2 CIRCUIT 8SOICLME49720MAX/NOPBIC AUDIO 2 CIRCUIT 8SOICAudio4431 - ImmediateView Details
IC AUDIO 2 CIRCUIT TO5-8LME49720HA/NOPBIC AUDIO 2 CIRCUIT TO5-8Audio0View Details

Evaluation Board

ImageManufacturer Part NumberDescriptionChannels per ICAmplifier TypeOutput TypeAvailable QuantityView Details
BOARD EVALUATION LME49720MALME49720MABDBOARD EVALUATION LME49720MA2 - DualAudioSingle-Ended2 - Immediate
8 - Factory Stock
View Details
Published: 2016-05-26