iMEMS 麦克风

Find high performance analog and digital output MEMS microphones that offer high quality audio acquisition with no performance degradation over time or exposure to high temperature, even in space-constrained and multi-microphone applications. Analog Devices MEMS microphones leverage industry-leading MEMS and signal processing expertise with robust audio performance specifications including up to 65 dB A-weighted SNR for superior far field audio capture, and flat wideband frequency response from 100 Hz to 15 kHz for superb intelligibility. ADI MEMS microphones integrate processing levels and common digital output types, including I2S, and are rapidly replacing traditional ECMs (electret condenser microphones), resulting in improved user experience.

MEMS Microphones
Part# Results: 6 Type Port Location SNR (dBA) Equivalent Input Noise (dBA) Sensitivity @ 1 kHz PSR Frequency Response Package
ADMP441 I2S Bottom 61dB 33dB -26 dBFS -75 dBFS 60 Hz to 15 kHz 4.72× 3.76x1.00mm LGA
ADMP504 Analog Bottom 65dB 29dB -38dBV -70 dBV 100 Hz to 20 kHz 3.35x 2.5x0.88mm LGA
ADMP404 Analog Bottom 62dB 32dB -38dBV -70 dBV 100 Hz to 15 kHz 3.35x 2.5x0.88mm LGA
ADMP405 Analog Bottom 62dB 32dB -38dBV -70 dBV 200 Hz to 15 kHz 3.35x 2.5x0.88mm LGA
ADMP401 Analog Bottom 62dB 32dB -42 dBV -70 dBV 100 Hz to 15 kHz 4.72× 3.76x1.00mm LGA
ADMP421 PDM Bottom 61dB 33dB -26 dBFS -80 dBFS 100 Hz to 15 kHz 3.00x4.00x1.00mm LGA