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1 2006

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4×288 readouts and FPAs properties

Sizov F. F., Reva V. P., Golenkov A. G., Vasiliev V. V., Suslyakov A. O.

Opto-Electronics Review

2006

Vol. 14, No. 1

79-86

Analysis of four types 4×288 designed and manufactured readouts is presented. All the readouts have the direct injection input circuit with the circuits incorporated that allows testing procedure of readouts without the photodiodes attached to readout circuits. TDI registers have three delay elements between neighbouring inputs. Some characteristics of 4×288 FPAs with mercury-cadmium-telluride (MCT) arrays are presented too. Analysis have shown that in spite of different constructions of four readout types, different numbers of outputs and external service, rather similar parameters of FPAs have been obtained. Detectivity values measured for all 4×288 FPAs at operation temperature T ≈ 78 K with skimming mode included and background temperature Tb ≈ 295 K were in the range D*λ ≅ (1.2–1.7)×10¹¹ cmHz¹/²/W.