TPA6120A2

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPA6120A2 SLOS431B – MARCH 2004 – REVISED FEBRUARY 2015 TPA6120A2 High Fidelity Headphone Amplifier 1 Features 1 SNR of 128dB A-Weighted. THD of 112.5dB Current-Feedback Architecture Output Voltage Noise of 0.9µVrms at Gain = 1V/V (16Ω Load) Power Supply Range: ±5V to ±15V 1300V/µs Slew Rate Can be configured for Single Ended or Differential Inputs Independent Power Supplies for Low Crosstalk 2 Applications Professional Audio Equipment HiFi Smartphone Consumer Home Audio Equipment Headphone Drivers 3 Description 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 TPA6120A2's 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-in...