Beijing, China — Analog Devices, Inc. (ADI), the world's leading provider of high-performance signal processing solutions, has launched the ADMP801, a high-performance MEMS microphone developed specifically for hearing aid applications. Compared with traditional solutions such as electret condenser microphones (ECM), ADMP801 is not only smaller in size (only 7.3 cubic millimeters), but also more stable in performance, not changing with time, temperature and environmental changes. Its equivalent input noise (EIN) is as low as 27 dBA SPL (sound pressure level), and the power consumption at 1 V power supply is only 17 µA, which is a fraction of the power consumption of traditional ECM. The ADMP801 MEMS microphone is packaged in a small surface mount package and measures only 3.35 mm x 2.50 mm x 0.98 mm. It is compatible with the reflow soldering process and the sensitivity will not be reduced.
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Pat O'Doherty, vice president of health care at Analog Devices, said: "Hearing applications are areas where MEMS microphones can show their talents because of their small size, high stability, and extremely low power consumption. However, the EIN performance of MEMS microphones used to Strict hearing aid standards cannot be met. The noise performance, package size, phase, and gain stability of the ADMP801 MEMS microphone fully meet the requirements of advanced hearing aid applications, and integrate beamforming technology to help locate sound sources. "
More information about ADMP801 omnidirectional MEMS microphone
The ADMP801 is a high-quality, ultra-low power, analog output, bottom-received omnidirectional MEMS microphone designed specifically for hearing aid applications. It is fully compatible with SMT and reflow processes, allowing mechanized assembly processes to be used to save costs; in contrast, ECM requires manual assembly processes. The device has excellent environmental and time stability. Multiple ADMP801 MEMS microphones can be configured as an array to form a directional response to help locate the sound source.
ADMP801 omnidirectional MEMS microphone main features:
· Microphone EIN: 27 dBA SPL
· Power consumption: 17 µA (1 V)
· Stable response, does not change with time and temperature
· Package volume: 7.3 cubic millimeters
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About ADI
Analog Devices, Inc. (ADI for short) takes innovation, performance and excellence as the cultural pillars of the company, and has since grown into one of the most enduring and fast-growing companies in the technology field. ADI is a world-leading supplier of data conversion and signal processing technologies widely recognized in the industry, with 60,000 customers all over the world, covering all types of electronic equipment manufacturers. As a leading manufacturer of high-performance analog integrated circuits (ICs) for more than 40 years, ADI products are widely used in the field of analog and digital signal processing. The company is headquartered in Norwood, Massachusetts, with design and manufacturing bases all over the world. ADI is included in the S & P 500 Index. For more information, please visit: http: //.
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