In applications requiring a high-power output, very high fidelity headphone amplifier,
the TPA6120A2 replaces a costly discrete design and allows music, not the amplifier, to be heard.
The TPA6120A2s current-feedback AB amplifier architecture delivers high bandwidth, extremely low
noise, and up to 128dB of dynamic range.
Three key features make current-feedback amplifiers outstanding for audio. The first
feature is the high slew rate that prevents odd order distortion anomalies. The second feature is
current-on-demand at the output that enables the amplifier to respond quickly and linearly when
necessary without risk of output distortion. When large amounts of output power are suddenly
needed, the amplifier can respond extremely quickly without raising the noise floor of the system
and degrading the signal-to-noise ratio. The third feature is the gain-independent frequency
response that allows the full bandwidth of the amplifier to be used over a wide range of gain
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