PCQ VIGO | Alldatasheet
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PCQ HgCdTe quadrant detector datasheet P a g e | 1 19/02/2021 VIGO System S.A. reserves the right to change these specifications at any time without notification. www.vigo.com.pl PCQ 1.0 – 12.0 µm HgCdTe ambient temperature photoconductive quadrant detector PCQ is uncooled IR photoconductive quadrant detector based on sophisticated HgCdTe heterostructures for the best performance and stability. Quadrant detector consists of four separate active elements arranged in a quadrant geometry. The device is optimized for the maximum performance at 10.6 µm. The detector should operate in optimum bias voltage and cu rrent readout mode. Performance at low frequencies is reduced due to 1/f noise. The main application of PCQ detectors is laser beam profiling and positioning. Spectral response (Ta = 20°C) Exemplary spectral detectivity, the spectral response of delivered devices may differ. Specification (Ta = 20°C) Parameter Detector type PCQ-10.6 Active elements material epitaxial HgCdTe heterostructure Optimum wavelength λopt, µm 10.6 Detectivity D*(λpeak, 20kHz), cm·Hz1/2/W ≥1.9×107 Detectivity D*(λopt, 20kHz), cm·Hz1/2/W ≥9.0×106 Current responsivity Ri(λopt), A/W ≥0.001 Time constant τ, ns ≤5 1/f noise corner frequency fc, Hz ≤20k Bias voltage-active area length ratio Vb/L, V/mm ≤6.0 Resistance R, Ω ≤240 Active area of single element A, mm×mm 1×1 Distance between elements, µm 50 Acceptance angle Φ ~70° Window none 1E+06 1E+07 1E+08 1 2 3 4 5 6 7 8 9 10 11 12 D*, cmHz1/2/W Wavelength, µm PCQ-10.6
PCQ HgCdTe quadrant detector datasheet P a g e | 2 19/02/2021 VIGO System S.A. reserves the right to change these specifications at any time without notification. www.vigo.com.pl Mechanical layout, mm Φ – acceptance angle Bottom view Top view Function Pin number Detector 1 12 Detector 2 10 Detector 3 6 Detector 4 4 Common 1, 7 Chassis ground 11 Not used 2, 3, 5, 8, 9