LME49710HA NSC [National Semiconductor], LME49710HA Datasheet

LME49710HA

Manufacturer Part Number

LME49710HA

Description

High Performance, High Fidelity Audio Operational Amplifier

Manufacturer

NSC [National Semiconductor]

Datasheet

1.LME49710HA.pdf (14 pages)

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LME49710

High Performance, High Fidelity Audio Operational

Amplifier

General 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 opera-

tional amplifiers deliver superior audio signal amplification for

outstanding audio performance. The LME49710 combines a

very high slew rate with vanishingly low THD+N to easily sat-

isfy 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 max-

imized by an output stage that drives 2kΩ loads to within 1V

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

600Ω loads.

The LME49710 has a wide supply range of ±2.5V to ±17V.

Over this supply range the LME49710’s input circuitry main-

tains excellent common-mode and power supply rejection, as

well as maintaining its low input bias current. The LME49710

is unity gain stable. It retains its outstanding performance

while driving difficult capacitive 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.

Typical Application

FIGURE 1. Passively Equalized RIAA Phono Preamplifier

202104

Key Specifications

Features

■

Applications

■

Easily drives 600Ω loads

Optimized for superior audio signal fidelity

Output short circuit protection

PSRR and CMRR exceed 110dB (typ)

SOIC, DIP, TO-99 metal can packages

Ultra high quality audio amplification

High fidelity preamplifiers

High fidelity multimedia

State of the art phono pre amps

High performance professional audio

High fidelity equalization and crossover networks

High performance line drivers

High performance line receivers

High fidelity active filters

Power Supply Voltage Range

THD+N (A

Input Noise Density

Slew Rate

Gain Bandwidth Product

Open Loop Gain (R

Input Bias Current

Input Offset Voltage

= 2kΩ

= 600Ω

= 1, V

OUT

= 3V

= 600Ω)

RMS

20210406

, f

= 1kHz)

2.5nV/

0.00003% (typ)

November 2006

±2.5V to ±17V

±20V/μs (typ)

www.national.com

0.05mV (typ)

55MHz (typ)

140dB (typ)

√

7nA (typ)

Hz (typ)

Related parts for LME49710HA

LME49710HA Summary of contents

Page 1

LME49710 High Performance, High Fidelity Audio Operational Amplifier General 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 ...

Page 2

... Connection Diagrams www.national.com Order Number LME49710MA See NS Package Number — M08A Order Number LME49710NA See NS Package Number — N08E Metal Can Order Number LME49710HA See NS Package Number — H08C 2 20210402 20210405 ...

Page 3

Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Power Supply Voltage ( Storage Temperature Input Voltage (V-) Output ...

Page 4

Symbol Parameter V Maximum Output Voltage Swing OUTMAX I Output Current OUT I Short Circuit Current OUT-CC R Output Impedance OUT C Capacitive Load Drive LOAD I Quiescent Current S Note 1: Absolute Maximum Ratings indicate limits beyond which damage ...

Page 5

Application Hints The LME49710 is a high speed op amp with excellent phase margin and stability. Capacitive loads up to 100pF will cause little change in the phase characteristics of the amplifiers and are therefore allowable. Noise Measurement Circuit Complete ...

Page 6

Typical Applications NAB Preamp kHz = 0.38 μ Weighted Balanced to Single Ended Converter V = V1–V2 O www.national.com NAB Preamp Voltage Gain vs Frequency V 20210430 ...

Page 7

Second Order High Pass Filter (Butterworth) Illustration kHz 0 Illustration kHz 10 Second Order Low Pass Filter 20210435 Illustration kHz 0 ...

Page 8

Line Driver Illustration is Hz 320 =11 kHz 1.1 kHz H HB www.national.com 20210440 Tone Control 20210441 20210442 8 ...

Page 9

0.33 μ S kHz A Weighted A Weighted kHz Illustration is 101(V2 − V1) RIAA Preamp ...

Page 10

Application Information DISTORTION MEASUREMENTS The vanishingly low residual distortion produced by LME49710 is below the capabilities of all commercially avail- able equipment. This makes distortion measurements just slightly more difficult than simply connecting a distortion me- ter to the amplifier’s ...

Page 11

Revision History Rev 1.0 Date Description 11/16/07 Initial release. 11 www.national.com ...

Page 12

Physical Dimensions www.national.com inches (millimeters) unless otherwise noted Dual-In-Line Package Order Number LME49710MA NS Package Number M08A Dual-In-Line Package Order Number LME49710NA NS Package Number N08E 12 ...

Page 13

... TO-99 Metal Can Order Number LME49710HA NS Package Number H08C 13 www.national.com ...

Page 14

THE CONTENTS OF THIS DOCUMENT ARE PROVIDED IN CONNECTION WITH NATIONAL SEMICONDUCTOR CORPORATION (“NATIONAL”) PRODUCTS. NATIONAL MAKES NO REPRESENTATIONS OR WARRANTIES WITH RESPECT TO THE ACCURACY OR COMPLETENESS OF THE CONTENTS OF THIS PUBLICATION AND RESERVES THE RIGHT TO MAKE ...

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