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TPA6120A2

ACTIVE

Stereo, 9.0- to 33.0-V, analog input headphone amplifier with 128 dB dynamic range

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Data sheet

TPA6120A2

ACTIVE
Data sheet Order now

Product details

Output power (W) 1.5 Analog supply (min) (V) 10 Analog supply voltage (max) (V) 30 Load (min) (Ω) 8 PSRR (dB) 75 Rating Catalog Operating temperature range (°C) -40 to 85 Headphone channels Stereo Volume control No Shutdown current (ISD) (µA) 0.7 Architecture Class-AB Iq per channel (typ) (mA) 11.5
Output power (W) 1.5 Analog supply (min) (V) 10 Analog supply voltage (max) (V) 30 Load (min) (Ω) 8 PSRR (dB) 75 Rating Catalog Operating temperature range (°C) -40 to 85 Headphone channels Stereo Volume control No Shutdown current (ISD) (µA) 0.7 Architecture Class-AB Iq per channel (typ) (mA) 11.5
HSOIC (DWP) 20 133.444125 mm² 12.825 x 10.405 VQFN (RGY) 14 12.25 mm² 3.5 x 3.5
  • 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
  • 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

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-independent frequency response that allows the full bandwidth of the amplifier to be used over a wide range of gain settings.

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-independent frequency response that allows the full bandwidth of the amplifier to be used over a wide range of gain settings.
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Technical documentation

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Type Title Date
* Data sheet TPA6120A2 High Fidelity Headphone Amplifier datasheet (Rev. B) PDF | HTML 04 Feb 2015
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
EVM User's guide TPA6120A2RGYEVM User's Guide 17 Jul 2014
User guide TPA6120A2EVM - User Guide 06 May 2004

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPA6120A2EVM — TPA6120A2 Evaluation Module (EVM)

The TPA6120A2 is a Hi-Fi stereo headphone amplifier capable of delivering 1.5 W of continuous RMS power per channel into 32-Ohm speakers with less than 0.0003% THD+N.

User guide: PDF
Not available on TI.com
Evaluation board

TPA6120A2RGYEVM — TPA6120A2RGYEVM Stereo Headphone Amplifier in QFN Evaluation Module

The TPA6120A2 is an exceptionally high-performance Hi-Fi stereo headphone amplifier capable of delivering 1.5 W of continuous RMS power per channel into 32-Ohm speakers in a tiny QFP package.

User guide: PDF
Not available on TI.com
Gerber file

TPA6120A2RGY EVM Gerber Files

SLOC308.ZIP (1389 KB)
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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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Reference designs

TIDA-00385 — High Fidelity Audio Headphone Playback Reference Design for Portable and Smartphone Applications

Since the use of high fidelity headphones is a growing trend for portable audio playback, higher performance DAC and Headphone Amplifiers are demanded. This system converts digital audio from USB, SPDIF, or optical sources into analog using PCM5242 audio DAC. A high performance TPA6120A2 headphone (...)
Test report: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
HSOIC (DWP) 20 Ultra Librarian
VQFN (RGY) 14 Ultra Librarian
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