MAX4466 Electret Microphone Amplifier Module GY-MAX4466 Adjustable Gain Amplifier Board DC 2.4-5V

Introduction:

MAX4466 is a low-power operational amplifier that has been optimized and can be used as a microphone preamplifier. They provide an ideal combination of optimized gain bandwidth products and power supply currents, as well as low voltage operation in ultra small packages. MAX4466 has gain stability and can provide a gain bandwidth of 200kHz with only a power supply current of 24 μ A. After decompression, a minimum stable gain of+5V/V can be achieved, and a 600kHz gain bandwidth product can be provided. In addition, these amplifiers also have rail to rail output, high AVOL, and excellent power supply rejection and common mode rejection ratios, making them suitable for working in noisy environments. Widely used in cellular phones, digital repeating devices, headphones, hearing aids, microphone preamplifiers, portable computers, and speech recognition systems.

Characteristic:

Power supply voltage:+2.4V to+5.5V (can be directly connected to development board motherboards such as STM/Arduino/Raspberry Pi)

Power suppression ratio: 112dB

Common mode rejection ratio: 126dB

AVOL: 125dB (RL=100k Ω) rail to rail output

Static power supply current:<24 μ A

Gain bandwidth: 600kHz

Application:

Cellular phone Digital repeating device headset hearing-aid Microphone preamplifier Portable computer speech recognition system

Schematic diagram: