APPLICATION OF HYMOSS SIGNAL PROCESSING CIRCUITRY TO MINIATURE CRYOSTATICALLY-COOLED DEWARS (MCCD)

IRVINE SENSORS CORPORATION (ISC) HAS DEVELOPED SEVERAL ONE-HALF INCH INTEGRATED CIRCUITS (IC'S) FOR 128-CHANNEL IR DETECTOR ARRAY READOUTS AT CRYOGENIC TEMPERATURES INCLUDING PRE-AMPLIFIERS, FILTERS, AND A MULTIPLEXER. FROM THE MUCH SMALLER (15-30 ELEMENT) ARRAYS ASSOCIATED WITH THE MINIATURE CRYSTATICALLY-COOLED DEWAR (MCCD), THE IC SIZE CAN BE GREATLY REDUCED, SO MUCH SO, IN FACT, THAT ALL OF THE CONTROL LOGIC CAN BE BROUGHT ON-CHIP REDUCING THE PIN-OUT REQUIREMENTS TO FIVE OR SIX WIRES. ICS, THEREFORE, PROPOSES TO PLACE 32 CHANNELS OF ITS PROVEN HYMOSS SIGNAL PROCESSING CIRCUITS, ALONG WITH THE CONTROL LOGIC, ON AN IC SIZED TO FIT INTO A REPRESENTATIVE MINIATURE JOULETHOMSON COOLER. SPECIFICALLY, A 150 MIL SQUARE IC CONSUMING LESS THAN A MILLIWATT OF POWER IS COMTEMPLATED. IN PHASE I, ISC PROPOSES TO DESIGN AND VERIFY ANALYTICALLY THE PERFORMANCE OF THE IC. IN PHASE II, AN IC WILL BE BUILT AND TESTED.