INMP441 MEMS Digital Microphone

INMP441 MEMS Digital Microphone

InvenSense's INMP441 is a high-performance, low-power, digital-output, omnidirectional MEMS microphone with a bottom port. The complete INMP441 solution consists of a MEMS sensor, signal conditioning, analog-to-digital converter, anti-aliasing filters, power management, and an industry-standard 24-bit I2S interface. The I2S interface allows the INMP441 to connect directly to digital processors, such as DSPs and microcontrollers, without the need for an audio codec in the system.

The INMP441 has a high SNR and high sensitivity, making it an excellent choice for far field applications. The INMP441 has a flat wideband frequency response, resulting in natural sound with high intelligibility.

The INMP441 is available in a thin 4.72 mm x 3.76 mm x 1 mm surface-mount package. It is reflow-solder compatible with no sensitivity degradation. The INMP441 is halide free.

View the INMP441 Functional Block Diagram

Features
  • Digital I2S interface with high-precision 24-bit data
  • High SNR of 61 dBA
  • High sensitivity of -26 dBFS
  • Flat frequency response from 60 Hz to 15 kHz
  • Low current consumption of 1.4 mA
  • High PSR of -75 dBFS
  • Small 4.72 mm x 3.76 mm x 1 mm surface-mount package
  • Compatible with Sn/Pb and Pb-free solder processes
  • RoHS/WEEE compliant
Applications
  • Teleconferencing systems
  • Gaming consoles
  • Mobile devices
  • Laptops
  • Tablets
  • Security systems
  • Remote controls

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