INMP405ACEZ-R7

Microphones Overview

The INMP405ACEZ-R7 is an omnidirectional MEMS silicon microphone featuring analog output and bottom port configuration. It operates within a voltage range of 1.5 V to 3.3 V, drawing a supply current of 250 µA. The device delivers a sensitivity of -38 dB ±3 dB at 94 dB SPL and achieves a signal-to-noise ratio of 65 dB. Its frequency response spans from 200 Hz to 15 kHz with an acoustic overload point of 124 dB SPL. Packaged in a compact LGA-3 surface-mount format measuring 3.35 mm x 2.50 mm x 1.10 mm, it supports SMD/SMT installation.

Microphones Feature Summary

• Omnidirectional sound capture capability for uniform audio pickup
• Analog output interface compatible with standard audio processing circuits
• RF-hardened design to maintain performance in high-interference environments

Microphones Applications

• Mobile phones and smartphones
• Tablets and portable computing devices
• Wearable electronics and smart accessories

Microphones Procurement Notes

Verify the component status as obsolete or end-of-life before procurement planning. Confirm availability through authorized distributors or secondary market sources. Ensure compatibility with existing PCB footprints and soldering profiles. Check for alternative replacement parts if long-term supply stability is required. Validate RoHS compliance and moisture sensitivity levels for storage and handling requirements.

Microphones Selection Notes

Select this component for applications requiring low power consumption and compact form factors. Consider its analog output nature when interfacing with ADCs or audio codecs. Evaluate the 200 Hz to 15 kHz frequency range against specific audio bandwidth needs. Assess the RF-hardening feature for suitability in electrically noisy environments. Compare physical dimensions against space-constrained design requirements.

Microphones Part Context

This part belongs to the INMP series of MEMS microphones from TDK InvenSense. It shares architectural similarities with other models like the INMP510 but differs in frequency response and voltage specifications. The series emphasizes miniaturization and low noise performance for consumer electronics. Understanding the broader family helps in identifying functional equivalents or upgrades within the manufacturer's portfolio.

Microphones Replacement Considerations

Public confirmed substitute part numbers include ADMP510ACEZ-RL7TR and INMP510ACEZ-R7. Verify pinout compatibility and electrical parameter alignment before substitution. Review datasheet differences regarding frequency response and operating voltage ranges.