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auto power amp


Class-D audio amplifier solutions from Diodes Incorporated maximize battery life, reduce power lost as heat, and minimize printed circuit board (PCB) area while providing high-quality audio performance. Our filterless, low electromagnetic interference (EMI) modulation architecture delivers efficiencies of up to 92%, and eliminates the large inductors and capacitors between the amplifier and the speaker that traditional Class-D amplifiers require.

Technology highlights of Diodes' Class-D amp design include:

    • Volume control, integrated headphone amplifier
    • Low EMI, anti-clipping, and power limiting
    • Short-circuit, over/undervoltage, and thermal protection

analog headphone amp

Products include both mono and stereo speaker drivers with maximum output power ranging from 1.5W to 32W and typical total harmonic distortion plus noise (THD+N) of less than 0.5%. Features include DC volume control, fixed or selectable gain settings, integrated headphone amplifier, micro-power shutdown mode, anti-pop and click circuitry and anti-saturation output power limiting.

The ideal analog headphone amplifier can be found to fit your needs. Diodes' headphones can drive 25mW max into 16Ω or 32Ω stereo, eliminating large output DC-blocking capacitors. 

Learn about Diodes' 3W Stereo Class D Amplifier and how it drives bridge-tied stereo speakers or Class-AB Headphones.

Part Number Product Name


Volume/Gain Gain dB (Min) Gain dB (Max) SNR (dB) PSRR (dB) Package Outlines
PAM8404 3W Stereo Filterless Class-D Audio Amplifier 2.5 to 5.5 11  89 Four
6 24 87 -63 U-QFN4040-20


25mW Stereo True Cap Free Stereo Audio Headphone Amplifier


2.5 to 5.5



  - Four 
-6 6 100 -75 U-QFN3030-16