The INMP441 is a performance, low power, digital output omnidirectional MEMS microphone with a bottom port. The complete INMP441 solution comprises the MEMS sensor, signal conditioning, an analog to digital converter, an antialiasing filter, power management, and an industry standard 24bit I2S interface. It delivers a signaltonoise ratio and is well suited for nearfield voice capture. The I2S interface enables direct connection to digital processors such as DSPs and microcontrollers without the need for an external audio codec. Key benefits and attributes Direct digital interface reduces system cost and board space by eliminating the need for a separate audio codec. Bottomport design facilitates enclosure integration in compact devices and helps with placement in tight spaces. Omnidirectional pickup provides consistent nearfield sensitivity for voice and ambient audio in real time. Low power operation supports batterypowered and portable applications without compromising performance. 24bit I2S interface provides wide dynamic range and compatibility with standard digital audio processing pipelines. Integrated signal conditioning, ADC, antialiasing filter, and power management simplify design and shorten development time. Function and compatibility: designed to work with digital processors such as DSPs and microcontrollers via I2S, enabling straightforward integration into a wide range of products. Use scenarios Voice user interfaces for smart speakers, voice assistants, conferencing devices, or integrated soundbars where compact, quality nearfield capture is required. Portable devices such as handheld cameras or field recorders that need a compact digital microphone with direct I2S connection for clean audio capture. IoT and embedded systems requiring nearfield voice or environmental audio sensing with a simple digital interface and minimal external components.