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Products Thermopile Sensors » Linear Arrays     Technical Specifications  128 responsive elements arranges in a line Coated germanium or silicon as infrared window Broad band windows or special filters are possible on request NEP(128Hz)=4nW (typical) Dynamic range>75dB Integrated CMOS multiplexed Good long term stability Simple mode of operation Operation at ambient temperatures Small Packages. Description: The  pyroelectric linear arrays are hybrid detectors with 128 or 256 responsive lithium tantalate elements and a multiplexing read out integrated circuit. The 128 element linear array has a pitch of 100 �m and element sizes of 90 �m x 100 �m, 90 �m x 500 �m or 90 �m x 1000 �m. The 256 element linear array has 50 �m pitch and an element size of 42 �m x 100 �m. The pyroelectric chip and the read-out circuit are arranged in a metal hermetic package with an infrared window that determines the spectral sensitivity. Available types: HPS 128-LTI-S,HPS 128-LT-,HPS 2561-100 For more details : http://www.heimannsensor.com/thermopile_modules.php