MEMS microphone promises higher performance, lower power hearing aids
Specifically designed for next generation hearing aid applications, Analog Devices' new MEMS microphone is optimised to deliver 27dBA EIN and consume only 17µA at 1V supply.
The device – available in a 7.3mm³ package – is said to consume a fraction of the power consumed by traditional ECMs.
It is also fully pick and place and reflow compatible, offering an option to save on cost using a mechanised assembly process.
"MEMS microphones have not offered the EIN performance levels that meet stringent hearing aid standards until now," claimed Pat O'Doherty, vp of Analog Devices' healthcare group.
"The ADMP801 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 localisation."
