TPA6120A2 Breakout Board

TPA6120BOBYou’ve probably heard about Texas Instruments’ TPA6120 Hi-Fi Audio OpAmp. You’ve also probably heard some stuff about how it’s tricky to use and difficult to install. It’s true it’s a wicked fast and an unbelievably clean little chip, with almost no Total Harmonic Distortion, and an impressive 1300 V/μs Slew Rate. It’s also true that it can be somewhat temperamental if your circuit isn’t designed correctly. But I assure you with just a basic understanding of OpAmps, any DIYer can tame this beast.

There are just a couple things you need to remember: always use decoupling capacitors, and the path to ground from each input pin has to have the same resistance. Check out our blog post for everything you need to know to install the TPA6120 in your next project. Be sure to also consult the Texas Instruments datasheet for the official design guidelines.

What makes this breakout board special? Nothing really, it’s just a board I designed a while ago to help with prototyping. It’s only feature is that it converts TI’s PowerPad™ package to a standard 0.1″ though-hole. The tricky part about mounting this chip is that annoying ground pad on the bottom. That ground pad is the reason a reflow oven is needed to mount this chip on it’s own. The pre-assembled breakout board sold here solves the problem of mounting for anyone who doesn’t have a access to reflow equipment.

FEATURES of the TPA6120A2

  • Power Supply Range: ±5 V to ±15 V
  • Greater than 120 dB of Dynamic Range
  • 1300 V/μs Slew Rate
  • 0.00014% Total Harmonic Distortion & Noise
  • 120 dB Signal to Noise Ratio

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Future Products

Plans for both a portable Headphone Amp, and a USB DAC are in the works. Subscribe to @AstrusLabs on Twitter for all the latest news.