LM4810

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SNAS125D – FEBRUARY 2001 – REVISED APRIL 2013

LM4810

Dual 105mW Headphone Amplifier with Active-High Shutdown Mode

Check for Samples: LM4810

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FEATURES

DESCRIPTION

The LM4810 is a dual audio power amplifier capable

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•

Active-High Shutdown Mode

of delivering 105mW per channel of continuous

•

WSON, VSSOP, and SOIC Surface Mount

average power into a 16

Ω load with 0.1% (THD+N)

Packaging

from a 5V power supply.

•

"Click and Pop" Suppression Circuitry

Boomer

audio

power

amplifiers

were

designed

•

Low Shutdown Current

specifically to provide high quality output power with a

minimal amount of external components. Since the

•

No Bootstrap Capacitors Required

LM4810 does not require bootstrap capacitors or

•

Unity-Gain Stable

snubber networks, it is optimally suited for low-power

portable systems.

APPLICATIONS

The unity-gain stable LM4810 can be configured by

•

Cellular Phones

external gain-setting resistors.

•

Personal Computers

The LM4810 features an externally controlled, active-

•

Microphone Preamplifier

high, micropower consumption shutdown mode, as

•

PDA's

well as an internal thermal shutdown protection

mechanism.

KEY SPECIFICATIONS

•

THD+N at 1kHz, 105mW Continuous Average

Power into 16

Ω 0.1 % (typ)

•

THD+N at 1kHz, 70mW Continuous Average

Power into 32

Ω 0.1 % (typ)

•

Shutdown Current 0.4 µA (typ)

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

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All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2001–2013, 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.