INMP404ACEZ-R0

Microphones Overview

The INMP404ACEZ-R0 is an omnidirectional MEMS microphone featuring analog output and bottom port configuration. It operates within a voltage range of 1.5 V to 3.3 V with a supply current of approximately 225 µA. The device provides a sensitivity of -38 dB ±3 dB at 94 dB SPL and achieves a signal-to-noise ratio of 62 dB. Its frequency response spans from 100 Hz to 15 kHz, supporting acoustic pressure levels up to 160 dB. Packaged in a compact LGA-3 form factor measuring 3.35 mm x 2.50 mm x 0.98 mm, it is designed for surface-mount installation.

Microphones Feature Summary

• Omnidirectional acoustic pickup pattern ensures consistent sound capture from all directions.
• Bottom port design facilitates integration into space-constrained enclosures.
• Analog output interface allows direct connection to standard audio processing circuits.

Microphones Applications

• Mobile communication devices
• Wearable technology
• Voice-controlled consumer electronics

Microphones Procurement Notes

Verify the specific suffix R0 against the manufacturer's latest documentation to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status and moisture sensitivity level requirements prior to assembly planning. Check for obsolescence notices or recommended replacement alternatives as availability may vary by region.

Microphones Selection Notes

Select this component when a low-profile, omnidirectional microphone with analog output is required. Ensure the host system supports the 1.5 V to 3.3 V operating voltage range. Verify that the 62 dB SNR meets the application's noise floor requirements. Confirm mechanical fit within the 3.35 mm x 2.50 mm footprint constraint.

Microphones Part Context

This part belongs to the INMP404 series of MEMS microphones manufactured by TDK InvenSense. It is distinct from other series like INMP504 or INMP510 which may offer different sensitivity or noise performance characteristics. The product line targets general-purpose audio sensing applications requiring reliable analog signal generation.

Microphones Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.