Infrared systems cameras trend is to require higher performance (thanks to higher resolution) and in parallel
higher compactness for easier integration in systems.
The latest developments at SOFRADIR / France on HgCdTe (Mercury Cadmium Telluride / MCT) cooled IR
staring detectors do show constant improvements regarding detector performances and compactness, by
reducing the pixel pitch and optimizing their encapsulation.
Among the latest introduced detectors, the 15μm pixel pitch JUPITER HD-TV format (1280×1024) has to
deal with challenging specifications regarding dewar compactness, low power consumption and reliability.
Initially introduced four years ago in a large dewar with a more than 2kg split Stirling cooler compressor, it is
now available in a new versatile compact dewar that is vacuum-maintenance-free over typical 18 years
mission profiles, and that can be integrated with the different available Stirling coolers: K548 microcooler for
light solution (less than 0.7 kg), K549 or LSF9548 for split cooler and/or higher reliability solution.
The IDDCAs are also required with simplified electrical interface enabling to shorten the system development
time and to standardize the electronic boards definition with smaller volumes. Sofradir is therefore introducing
MEGALINK, the new compact Command & Control Electronics compatible with most of the Sofradir
IDDCAs. MEGALINK provides all necessary input biases and clocks to the FPAs, and digitizes and
multiplexes the video outputs to provide a 14 bit output signal through a cameralink interface, in a surface
smaller than a business card.