LM4908, LM4908LQBD

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SNAS218C – NOVEMBER 2003 – REVISED MAY 2013

LM4908

10kV ESD Rated, Dual 120 mW Headphone

Amplifier

Check for Samples: LM4908, LM4908LQBD

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FEATURES

DESCRIPTION

The LM4908 is a dual audio power amplifier capable

2

•

Up to 10kV ESD Protection on All Pins

of delivering 120mW per channel of continuous

•

VSSOP, SOIC, and WSON Surface Mount

average power into a 16

Ω load with 0.1% (THD+N)

Packaging

from a 5V power supply.

•

Switch On/Off Click Suppression

Boomer

audio

power

amplifiers

were

designed

•

Excellent Power Supply Ripple Rejection

specifically to provide high quality output power with a

minimal

amount

of

external

components

using

•

Unity-Gain Stable

surface mount packaging. Since the LM4908 does

•

Minimum External Components

not require bootstrap capacitors or snubber networks,

it is optimally suited for low-power portable systems.

APPLICATIONS

The unity-gain stable LM4908 can be configured by

•

Headphone Amplifier

external gain-setting resistors.

•

Personal Computers

•

Portable Electronic Devices

KEY SPECIFICATIONS

•

THD+N at 1kHz at 120mW Continuous

Average Output Power into 16

Ω: 0.1 % (typ)

•

THD+N at 1kHz at 75mW Continuous Average

Output Power into 32

Ω: 0.1 % (typ)

•

Output Power at 0.1% THD+N at 1kHz into

32

Ω 75 mW (typ)

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

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PRODUCTION DATA information is current as of publication date.

Copyright © 2003–2013, 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.