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LM4808

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105-mW, stereo, analog input headphone amplifier

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Data sheet

LM4808

ACTIVE
Data sheet Order now

Product details

Output power (W) 0.105 Analog supply (min) (V) 2 Analog supply voltage (max) (V) 5.5 Load (min) (Ω) 16 PSRR (dB) 89 Rating Catalog Operating temperature range (°C) -40 to 85 Headphone channels Stereo Volume control No Architecture Class-AB Iq per channel (typ) (mA) 0.6
Output power (W) 0.105 Analog supply (min) (V) 2 Analog supply voltage (max) (V) 5.5 Load (min) (Ω) 16 PSRR (dB) 89 Rating Catalog Operating temperature range (°C) -40 to 85 Headphone channels Stereo Volume control No Architecture Class-AB Iq per channel (typ) (mA) 0.6
SOIC (D) 8 29.4 mm² 4.9 x 6 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • 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)

All trademarks are the property of their respective owners.

  • 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)

All trademarks are the property of their respective owners.

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.

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.
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* Data sheet LM4808 Dual 105 mW Headphone Amplifier datasheet (Rev. D) 01 May 2013
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 26 Aug 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 27 Jun 2019

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