Feature

●The MAX4466 is a micropower operation amplifier optimized for use as a microphone preamp.
●Provides a gain bandwidth of 200 kHz at only 24 μA supply current. After decompression, a minimum stable gain of +5 V/V is achieved and a bandwidth product with 600 kHz gain is provided.
●These amplifiers have a rail-to-rail output, high AVOL value and excellent power suppression and common mode suppression rates for operation in noisy environments.
●This breakout is best suited for projects such as voice changer, audio recording/audio sampling and audio reactive projects that use FFT. On the back we have a small trimmer potentiometer to adjust the gain. You can adjust the gain from 25x to 125x.
●Widely used in mobile phones, digital repeaters, headphones, hearing aids, microphone preamps, portable computers and voice recognition systems.


Description

Parameters:
Supply voltage: +2.4V to +5.5V (can be directly connected to STM / ARDUNIO / Raspberry Pi and other motherboards of the development board)
Power Rejection Ratio: 112dB
Common mode rejection ratio: 126dB
AVOL: 125 dB (RL = 100 kΩ) Rail-to-Rail output
Static supply current: <24μA.
Gain bandwidth: 600 kHz.
Size: 20.8 x 13.7 x 7.8 mm.
Weight: 1.6g

Introduction:
Connect GND to Earth, VCC with 2.4-5VDC
The audio waveform is emitted from the OUT pin.
The output has a DC pre-voltage of VCC / 2, and when it is completely quiet, the voltage is constant VCC / 2 volts (it is DC coupled).
If the audio device you are using requires AC-paired audio, place a 100uF capacitor between the output pin and the input of your device.
If you connect an audio amplifier with differential inputs or decoupling capacitors, the 100uF cap is not required.

Box contents:
3 x MAX4466 module.