MS3625 INMP441 Omnidirectional MEMS Digital Microphone Module
MS3625 INMP441 Omnidirectional MEMS Digital Microphone Module
MS3625 INMP441 Omnidirectional Digital MEMS Microphone Module
The MS3625 INMP441 Omnidirectional Digital Microphone is a compact, high-performance MEMS microphone module engineered for makers, developers, and electronics enthusiasts. Built with a robust metal housing, this ultra-small module delivers crystal-clear omnidirectional audio capture — perfect for integration into ESP32, Arduino, and other microcontroller-based projects.
Complete Integrated Solution
The INMP441 is a fully integrated solution that combines everything you need in one tiny package:
- MEMS Sensor — High-sensitivity omnidirectional microphone element
- Signal Conditioning — Built-in processing for clean, consistent audio output
- Analog-to-Digital Converter (ADC) — Converts audio signals with precision
- Anti-Aliasing Filter — Ensures accurate digital audio reproduction
- Power Management — Efficient, stable operation at low power draw
- 24-bit I2S Interface — Industry-standard digital audio interface for direct connectivity
Direct Digital Connectivity
Thanks to the standard 24-bit I2S interface, the INMP441 connects directly to digital signal processors (DSPs), ESP32, Arduino, Raspberry Pi, and other microcontrollers — no external audio codec required. This simplifies your circuit design and reduces component count for cleaner, more efficient builds.
Key Features
- Ultra-compact form factor — fits in space-constrained designs
- Omnidirectional pickup pattern — captures audio from all directions equally
- Metal housing for durability and interference shielding
- Available in 2 color options
- Compatible with ESP32, Arduino, DSP, and microcontroller platforms
- Ideal for voice recognition, audio logging, IoT devices, and robotics
Specifications
- Model: MS3625 / INMP441
- Interface: I2S (24-bit)
- Pickup Pattern: Omnidirectional
- Material: Metal
- Compatible Platforms: ESP32, Arduino, DSPs, Microcontrollers
What's in the Box
- 1 × MS3625 INMP441 Omnidirectional Digital Microphone Module
For more information on MEMS microphone technology and digital audio standards, visit the National Institute of Standards and Technology (NIST) — Electronics.
Frequently Asked Questions
Q: What is the MS3625 INMP441 Omnidirectional Digital Microphone used for?
A: The MS3625 INMP441 is a MEMS digital microphone module used in electronics projects requiring audio input, such as voice recognition systems, IoT devices, audio logging, robotics, and smart home applications. It is compatible with ESP32, Arduino, DSPs, and other microcontrollers via its standard I2S interface.
Q: Does the INMP441 require an external audio codec?
A: No. The INMP441's built-in 24-bit I2S interface allows it to connect directly to digital processors and microcontrollers without the need for an additional audio codec, making it ideal for streamlined and efficient circuit designs.
Q: What pickup pattern does this microphone use?
A: The INMP441 uses an omnidirectional pickup pattern, meaning it captures audio equally from all directions — making it well-suited for open-environment listening, conferencing setups, and ambient sound detection in embedded systems.
Q: What platforms is the MS3625 INMP441 compatible with?
A: This module is compatible with a wide range of development platforms including ESP32, Arduino, Raspberry Pi, and other DSP or microcontroller-based systems that support the I2S digital audio interface.