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Smallest MEMS Microphone Designed For Hearing Aid Applications Produces Very Low EIN Of 27 DBA SPL, Consumes Only 17 UA At 1 V Supply, And Is Available In A 7.3 Cubic Millimeters Package. (Photo: Business Wire)

Analog Devices, Inc. (NASDAQ: ADI), a global leader in high-performance semiconductors for signal processing applications, introduced today a high performance MEMS microphone developed specifically for hearing aid applications. When compared to legacy solutions like electret condenser microphones (ECMs), the ADMP801 is not only smaller in size at only 7.3 cubic millimeters, but also offers greater performance stability over time, temperature, and environmental changes, produces very low equivalent input noise (EIN) at 27 dBA SPL (sound pressure level), and consumes only 17 µA at 1Vsupply -- a fraction of the power consumed by traditional ECMs. The ADMP801 MEMS microphone is available in a tiny surface-mount package measuring only 3.35 mm x 2.50 mm x 0.98 mm that is reflow-solder-compatible with no sensitivity degradation.

Smallest MEMS Microphone designed for hearing aid applications produces very low EIN of 27 dBA SPL,  ...

Smallest MEMS Microphone designed for hearing aid applications produces very low EIN of 27 dBA SPL, consumes only 17 uA at 1 V supply, and is available in a 7.3 cubic millimeters package. (Photo: Business Wire)

“Hearing aids represent an application ideally suited for the advantages MEMS microphones offer including small size, stability, and very low power consumption,” said Pat O’Doherty, vice president for the Healthcare Group, Analog Devices. “However, MEMS microphones have not offered the EIN performance levels that meet stringent hearing aid standards until now. The ADMP801 MEMS microphone offers noise performance, package size, and phase and gain stability that is very desirable for advanced hearing aids that incorporate beamforming to facilitate sound or voice localization.”

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