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MAX4466 Microphone Amplifier Module

The MAX4466 is a micro power operational amplifier optimized for use as a microphone preamplifier. Add an ear to your project with this well-designed which has excellent power supply noise rejection.

On the back, we include a small trimmer pot to adjust the gain. You can set the gain from 25x to 125x. That's down to be about 200mVpp (for normal speaking volume about 6" away).


  • Power supply voltage: + 2.4V to + 5.5V
  • Power supply rejection ratio: 112dB
  • Common mode rejection ratio: 126dB
  • AVOL: 125dB (RL = 100kΩ) rail-to-rail output
  • Static supply current: 24μA
  • Gain bandwidth: 600kHz
  • Size: 20.8MM*13.8MM*7.5MM


  • 1 x MAX4466 Microphone Amplifier Module

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