Industry’s Most Sensitive MEMS Mic

PORTLAND, Ore. — In its rush to get to market "while the iron is hot," Vesper Technologies Inc. (Boston) has announced what it still claims is the industry's highest signal-to-ratio (SNR) for a high-definition (HD) microelectromechanical system (MEMS) microphone, even though it is scaled back to 68dB rather than the astounding 70dB SNR MEMS mic they previously promised. "Our roadmap now calls for the 70dB v ...

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‘Most powerful’ infra-red LEDs

LED Engin has announced a quad die infra-red LED emitting 4.5W of flux, from 850nm and 940nm variants. “The four die parts are the world’s most powerful IR emitters,” said the firm, which has also released some deep red emitters. Called LZ4, the IR LEDs have a 7x7mm footprint and the firm’s dual-junction emitters. Heat management is a priority and the package is a proprietary thermal expansion matched multi ...

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