LM4808 LM4808 Dual 105 mW Headphone Amplifier | TI.com

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LM4808 Dual 105 mW Headphone Amplifier

LM4808 Dual 105 mW Headphone Amplifier - LM4808


The LM4808 is a dual audio power amplifier capable of delivering 105mW per channel of continuous average power into a 16Ω load with 0.1% (THD+N) from a 5V power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components using surface mount packaging. Since the LM4808 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems.

The unity-gain stable LM4808 can be configured by external gain-setting resistors.


  • WSON, VSSOP, and SOIC Surface Mount Packaging
  • Switch On/Off Click Suppression
  • Excellent Power Supply Ripple Rejection
  • Unity-Gain Stable
  • Minimum External Components

Key Specifications

  • THD+N at 1kHz at 105mW Continuous Average Output Power Into 16Ω 0.1 % (typ)
  • THD+N at 1kHz at 70mW Continuous Average Output Power Into 32Ω 0.1 % (typ)
  • Output Power at 0.1% THD+N at 1kHz Into 32Ω 70 mW (typ)

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Part number Order Output power (W) Analog supply (Min) (V) Analog supply (Max) (V) PSRR (dB) Rating Operating temperature range (C) Headphone channels Volume control Architecture Iq per channel (Typ) (mA)
LM4808 Order now 0.105     2     5.5     89     Catalog     -40 to 85     Stereo     No     Class-AB     0.6