Микрофоны iMEMS®

High Quality Audio Acquisition
Design engineers worldwide are becoming increasingly familiar with the vast capabilities of ADI’s innovative iMEMS® technology. That’s why the real promise of the technology is being realized daily in hundreds of cutting-edge applications, beginning with motion sensors and now with iMEMS microphones.

Combining nearly 20 years of MEMS know-how with ADI’s audio signal processing expertise, iMEMS microphones provide unprecedented performance and reliability. With an SNR of 61dB A-weighted and flat frequency response from 100Hz to >12kHz, iMEMS analog and digital output microphones provide superior audio acquisition to enable the next generation of audio requirements.

RESOURCES & RELATED INFORMATION

Analog Devices’ MEMS Microphone Receives Prestigious Golden Mousetrap Award
from Design News Magazine.
Ad Overview: Everything sounds better, and plays longer, with Analog ICs inside. (html)
Tech article: MEMS Microphones Enhance Audio System Quality And Reliability by Todd Borkowski, ADI (Mobile Dev&Design, Jul 9, 2009)
Video: Introducing iMEMS Microphone
Hear the Difference™
Analog Dialogue: Sonic Nirvana: Using MEMS Accelerometers as Acoustic Pickups in Musical Instruments (html)

Tech article: A History of Consumer Microphones Acoustics Today, April 2009)

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MEMS Microphones

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Part# Results: 2		Type	Port Location	SNR (dBA)	Noise Typical (dBA)	Sensitivity @ 1 kHz	PSRR	Frequency Response	Supply Current	I(sleep) (uA)	Package	Price* (1000-4999)
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	ADMP401	Analog	Bottom	62	32	-42 dBV	70 dBV	100 Hz to 15 kHz	250µA	n/a	4.72mm × 3.76mm LGA	$1.63
	ADMP421	Digital	Bottom	61	33	-26 dBFS	80 dBFS	100 Hz to 15 kHz	650µA	50	3.00 mm x 4.00 mm LGA	$2.04

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