Cambridge CMOS offers IR sources for gas sensing

May 11, 2016 // By Peter Clarke
Cambridge CMOS offers IR sources for gas sensing
Cambridge CMOS Sensors Ltd. (Cambridge, England) has launched its CCS11xA infrared sources for optical gas sensing.

They are designed to operate across the wideband IR range (2 to 14-micron wavelength) and can be used to continually sense carbon dioxide, and ethanol vapors in non-dispersive infrared (NDIR) systems at low power.

The CCS11x range incorporates a novel plasmonic structure, based on a layer of metallic dots with a defined geometry that creates a resonant effect and increases optical emission. The devices also use a patented micro-hotplate design to deliver high optical emissions across a broad range of IR wavelengths with low drift. The plasmonic structure and the micro-hotplate are fabricated using a standard CMOS process.

The heater temperature can be controlled by appropriately adjusting the current or the supply voltage. It can be powered with low DC drive voltages and using pulse-width modulation (PWM).

Key product parameters for the CCS11x µBright family of infrared sources, Source: Cambridge CMOS Systems Ltd.

The CCS112A, CCS113A and CCS114A are available for sampling now in TO packages (TO46 and TO39) and available in volume in 3Q16.

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