MAX4466 Microphone AGC Amplifier Sound Sensor Module DIY Kit

MAX4466 Microphone AGC Amplifier Board – Sound Sensor Module

Take your DIY electronics projects to the next level with the MAX4466 Microphone AGC Amplifier Board. This compact, high-performance sound sensor module features an integrated Auto Gain Control (AGC) amplifier chip and an electret condenser microphone, making it the perfect building block for voice recognition systems, audio sampling, music visualizers, IoT voice interfaces, and more. Made in Mainland China.

Key Features

• High-Fidelity Sound Capture: Premium electret condenser microphone with a permanent electret material diaphragm captures the full audible frequency range (20Hz–20kHz), converting sound pressure into stable, low-distortion electrical signals for accurate audio data.
• Adjustable Gain Amplification: Powered by the MAX4466 low-power operational amplifier chip, this module supports a 25x to 125x adjustable gain range with rail-to-rail output — ideal for both line-level audio input and microcontroller ADC sampling without signal clipping.
• Strong Anti-Interference Performance: Gold-plated contact PCB with built-in ferrite noise suppression delivers an impressive 112dB power supply rejection ratio and 126dB common mode rejection ratio, filtering out ripple and environmental interference for stable, reliable output in complex environments.
• Universal Compatibility: Standard 3-pin (VCC, GND, OUT) header interface with a wide 2.4V–5.5V input voltage range — directly compatible with 3.3V and 5V development boards (Arduino, Raspberry Pi, ESP32, STM32, etc.) without extra peripheral circuits.
• Ultra-Low Power Consumption: Micro-power circuit design with only 24μA static operating current, making it ideal for battery-powered portable projects and long-term audio monitoring or voice interaction applications.

Specifications

Applications

• Voice recognition systems
• Sound-activated switches
• Decibel monitoring devices
• Audio recording and sampling
• Music visualizer projects
• IoT voice interaction equipment

Notes

• Photos are for illustration purposes only; please refer to the description for size details.
• Minor measurement differences may occur due to manual measurement.
• Actual color may vary slightly from images due to monitor differences.

Learn more: ENERGY STAR product efficiency guidance

Frequently Asked Questions

Q: Is the MAX4466 Microphone AGC Amplifier Board compatible with Arduino and Raspberry Pi?

A: Yes! The MAX4466 sound sensor module features a standard 3-pin (VCC, GND, OUT) header and supports a wide 2.4V–5.5V input range, making it directly compatible with 3.3V and 5V development boards including Arduino, Raspberry Pi, ESP32, and STM32 — no extra circuitry required.

Q: Can I adjust the gain on this microphone amplifier module?

A: Absolutely. The integrated MAX4466 AGC amplifier chip supports an adjustable gain range of 25x to 125x. You can tune the gain via the onboard trimmer potentiometer to match your specific application, whether it's line-level audio input or microcontroller ADC sampling.

Q: What makes this sound sensor module suitable for battery-powered projects?

A: The MAX4466 module is built on a micro-power circuit design with a static operating current of just 24μA. This extremely low power draw makes it well-suited for battery-powered portable projects, long-term audio monitoring setups, and IoT voice interaction devices where battery life is critical.

Q: What is included in the package?

A: Each order includes 1× MAX4466 microphone AGC amplifier sensor module and 1× set of 3-pin headers, ready for soldering and integration into your DIY electronics project.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.