LME49710

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SNAS376B – NOVEMBER 2006 – REVISED MARCH 2007

LME49710 High Performance, High Fidelity Audio Operational Amplifier

Check for Samples: LME49710

1

FEATURES

APPLICATIONS

2

•

Easily drives 600

Ω loads

•

Ultra high quality audio amplification

•

Optimized for superior audio signal fidelity

•

High fidelity preamplifiers

•

Output short circuit protection

•

High fidelity multimedia

•

PSRR and CMRR exceed 120dB (typ)

•

State of the art phono pre amps

•

SOIC, DIP, TO-99 metal can packages

•

High performance professional audio

•

High fidelity equalization and crossover

networks

•

High performance line drivers

•

High performance line receivers

•

High fidelity active filters

DESCRIPTION

The LME49710 is 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 LME49710 audio operational amplifiers deliver superior audio

signal amplification for outstanding audio performance. The LME49710 combines extremely low voltage noise

density (2.5nV/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 LME49710 has a

high slew rate of ±20V/

μs and an output current capability of ±26mA. Further, dynamic range is maximized by an

output stage that drives 2k

Ω loads to within 1V of either power supply voltage and to within 1.4V when driving

600

Ω loads.

operational amplifier DC performance.

The LME49710 has a wide supply range of ±2.5V to ±17V. Over this supply range the LME49710’s input circuitry

maintains excellent common-mode and power supply rejection, as well as maintaining its low input bias current.

The LME49710 is unity gain stable. The Audio Operational Amplifier achieves outstanding AC performance while

driving complex loads with values as high as 100pF.

The LME49710 is available in 8–lead narrow body SOIC, 8–lead plastic DIP, and 8–lead metal can TO-99.

Demonstration boards are available for each package.

Table 1. Key Specifications

VALUE

UNIT

■ Power Supply Voltage Range

±2.5V to ±17V

0.00003% (typ)

0.00003% (typ)

■ Input Noise Density

2.5nV/

√Hz (typ)

■ Slew Rate

±20V/

μs (typ)

■ Gain Bandwidth Product

55

MHz (typ)

140

dB (typ)

■ Input Bias Current

7nA (typ)

■ Input Offset Voltage

0.05mV (typ)

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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2006–2007, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.