Evaluation Kit for the MAX9814

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The MAX9814 evaluation kit (EV kit) is a fully assembled and tested PCB that is used to evaluate the single-supply MAX9814 low-noise microphone amplifier IC. The MAX9814 IC contains a low-noise amplifier, an output amplifier, a microphone bias-voltage generator, and automatic gain-control (AGC) internal circuitry. The overall gain of the microphone amplifier is selectable to 40dB, 50dB, or 60dB without compression. The MAX9814 incorporates compressor/limiter circuitry that limits the microphone output to a set voltage.

The MAX9814 EV kit operates over a 2.7V to 5.5V range. The EV kit also features low quiescent current, and shutdown control to minimize power consumption. The MAX9814 IC is available in a 14-pin TDFN (3mm x 3mm x 0.8mm) exposed paddle package.

Key Features

  • 2.7V to 5.5V Single-Supply Operation
  • 20dB of Dynamic Gain Compression
  • Selectable Gain Control
  • Programmable Attack Time
  • Selectable Attack/Release Ratio
  • Low-Power Shutdown Mode
  • Fully Assembled and Tested


  • Bluetooth® Headsets
  • Digital Still Cameras
  • Digital Video Cameras
  • Entertainment Systems (e.g. Karaoke)
  • High-Quality Portable Recorders
  • IP Phones/Telephone Conferencing
  • PDAs
  • Two-Way Communicators
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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