3pcs MAX4466 Microphone Amplifier Board with Adjustable Gain Control Electret Preamp Module for Arduino

MAX4466 Microphone Amplifier Board 3 pcs Overview A micropower operational amplifier board optimized for use as a microphone preamplifier. Small, lowpower, and suitable for batterypowered and portable audio projects that require clean preamplification and a stable output bias. Key benefits Low power consumption: only 24uA supply current while providing a 200 kHz gain bandwidth, extending battery life in portable applications. performance in a small package: ultrasmall footprint with lowvoltage operation from 2.4 to 5 VDC. Flexible gain and bandwidth: when used decompensated, supports stable gain down to +5 V/V and a 600 kHz gainbandwidth product for higherfrequency response. Robust output behavior: railtorail output, openloop gain, and good powersupply rejection and commonmode rejection for operation in noisy environments. Easy integration: DCcoupled output biased at VCC/2 simplifies sensor and ADC interfacing. Typical applications Microphone preamplifiers for portable recorders, voice recognition modules, and mobile audio accessories. Inear headphone and earbud preamps where low power and small size are required. Audioreactive projects and hobby electronics that use FFT processing or frequency analysis. How to use Power and ground: connect GND to ground and VCC to 2.4 to 5 VDC. Output behavior: the OUT pin provides the audio waveform and includes a DC bias equal to VCC/2. At quiet input levels the output sits at this DC bias. AC coupling: if your downstream device requires ACcoupled audio, place a 100uF coupling capacitor between the OUT pin and the device input. If the audio amplifier or device