ADMP404ACEZ-RL

Overview

The ADMP404ACEZ-RL is an omnidirectional MEMS microphone manufactured by Analog Devices Inc., featuring a single-ended analog output. It operates within a supply voltage range of 1.5 V to 3.6 V with a typical current consumption of 250 µA. The device provides a sensitivity of -38 dB ±3 dB at 94 dB SPL and achieves a signal-to-noise ratio of 62 dBA. Its frequency response spans from 100 Hz to 15 kHz, supporting acoustic pressure levels up to 120 dB. The component utilizes a bottom port design and is housed in a compact LGA-3 surface-mount package measuring 3.35 mm × 2.50 mm × 0.88 mm.

Feature Summary

• Omnidirectional acoustic pickup pattern suitable for general sound capture applications
• Integrated low-noise amplifier providing high signal-to-noise ratio performance
• Bottom-port diaphragm design compatible with standard PCB assembly processes

Applications

• Smartphones and mobile communication devices
• Video conferencing systems and speakerphones
• Digital cameras and camcorders
• Tablets and portable media players

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm pinout and electrical characteristics match your design requirements. Confirm RoHS compliance status through the manufacturer's current datasheet. Ensure availability checks are performed directly with authorized distributors as supply conditions may vary. Validate that the LGA-3 footprint matches your PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when a small form factor is required alongside analog output simplicity. It is appropriate for designs needing low power consumption under 250 µA. Consider this part for environments requiring operation across a wide temperature range from -40°C to +70°C. Evaluate the 62 dBA SNR against your system noise budget to ensure adequate audio clarity for voice-centric applications.

Part Context

This part belongs to the ADMP40x series of MEMS microphones from Analog Devices. These components are designed to replace traditional electret condenser microphones in modern electronics. The series offers consistent performance across various consumer electronic categories. The ADMP404 variant specifically targets applications requiring a balance between size, power, and audio fidelity.

Replacement Considerations

Check for ADMP401ACEZ-RL if a larger package or different sensitivity is acceptable. Verify ADMP404ACEZ-RL7 for identical electrical specifications but potentially different reel packaging quantities. Consult official substitution guides for any changes in pin configuration or mounting dimensions.