Analogue, Mixed Signal, LSI


Tiny MEMS microphone

1 May 2013 Analogue, Mixed Signal, LSI

Analog Devices has unveiled a high-performance MEMS microphone developed specifically for hearing aid applications.

When compared to legacy solutions like electret condenser microphones (ECMs), the ADMP801 claims to not only be smaller in size at only 7,3 mm³, but also offer greater performance stability over time, temperature and environmental changes, produce very low equivalent input noise (EIN) at 27 dBA SPL (sound pressure level), and consume only 17 μA at 1 V supply.

Besides its characteristic environmental and temporal stability, multiple ADMP801s microphones can be configured in an array to form a directional response, facilitating sound of voice localisation.

The microphone is available in a tiny surface-mount package measuring only 3,35 x 2,50 x 0,98 mm that is reflow solder compatible with no sensitivity degradation.



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