The LME49743MT is a high-performance, low distortion, low noise quad operational amplifier from Texas Instruments (formerly National Semiconductor). Designed for demanding audio applications, it delivers exceptional sonic clarity and precision. This amplifier is ideal for preamplifiers, line drivers, and professional audio equipment.

Applications

• High-end audio preamplifiers
• Professional audio mixing consoles
• Line drivers
• Headphone amplifiers
• High-fidelity audio processing equipment

Features

• Ultra-Low Total Harmonic Distortion + Noise (THD+N): Typically 0.00003% (at 1kHz), ensuring pristine audio reproduction.
• Low Input Voltage Noise: 2.5 nV/√Hz, contributing to a clean and quiet audio signal.
• High Slew Rate: 20 V/μs, enabling accurate reproduction of fast transients.
• Wide Supply Voltage Range: ±2.5V to ±17V, providing flexibility in circuit design.
• High Open-Loop Gain: 140 dB, ensuring excellent signal amplification.

Benefits

• Superior Audio Quality: Ultra-low distortion and noise result in clear, detailed, and accurate sound reproduction.
• Enhanced Dynamic Range: High slew rate and wide bandwidth allow for the reproduction of complex audio signals without clipping or distortion.
• Versatile Application: Suitable for a wide range of audio applications, from consumer electronics to professional audio equipment.
• Improved Signal Integrity: Low input noise ensures a clean and quiet audio signal, free from unwanted interference.
• Reliable Performance: Designed and manufactured by Texas Instruments, ensuring high reliability and consistent performance.

Technical Specifications

The LME49743MT operates with a supply voltage range of ±2.5V to ±17V. It features a typical input bias current of 10 pA and an input offset voltage of 0.1 mV. The operating temperature range is -40°C to +85°C. It is available in a SOIC-14 package.