TPA6120A2
TPA6120A2 is High Fidelity Headphone Amplifier manufactured by Texas Instruments.
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SLOS431B
- MARCH 2004
- REVISED FEBRUARY 2015
TPA6120A2 High Fidelity Headphone Amplifier
1 Features
- 1 SNR of 128d B A-Weighted.
- THD of 112.5d B
- 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
- Hi Fi 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 128d B 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 settings.
Device Information(1)
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