HgCdTe (MCT) 32-Channel IR Detection Module

MWIR, with thermoelectrically cooled photovoltaic 32-element linear detector

32EM-5-02 is a 32-channel detection module. Thermoelectrically cooled MWIR HgCdTe 32-element photovoltaic detector with active area of single element 0.1 mm × 0.1 mm is integrated with DC-coupled 32-channel transimpedance preamplifier.

Spectral response (Ta = 20°C, Vb = 0 mV)

Features

  • High sensitivity
  • High-speed response
  • 32 channels
  • Low crosstalk
  • Compact small size
  • Convenient cryogenic-free operation
  • External heatsink is necessary (recommended thermal resistance: ~2 K/W)
  • External TEC controller is necessary

Applications

  • Spectroscopy (gas detection, breath analysis)
  • Slow and fast contactless temperature measurement (railway transport, industrial and laboratory processes monitoring)
  • Optical sorting systems
  • Laser beam profiling and positioning
  • Flame and explosion detection
  • Defense and security
  • Combustion process control

Specification (Ta = 20°C)

Parameter
Typical value
Optical parameters
Cut-on wavelength λcut-on (10%) µm
3.7±0.2
Peak wavelength λpeak, µm
4.75±0.2
Optimal wavelength λopt, µm
5.0
Cut-off wavelength λcut-off (10%) µm
5.8±0.2
Detectivity D*(λpeak), cm⋅Hz1/2/W
≥2.4×109
Detectivity D*(λopt), cm⋅Hz1/2/W
≥2.2×109
Electrical parameters
Voltage responsivity Rvpeak, RLoad = 1 MΩ), V/W
≥5.0×104
Voltage responsivity Rvopt, RLoad = 1 MΩ), V/W
≥4.6×104
Low cut-off frequency flo, Hz
DC
High cut-off frequency fhi, kHz ≥650
Output impedance Rout, Ω 50
Output voltage swing Vout(RLoad = 1 MΩ), V -1

(negative output)

Output voltage offset Voff, mVDC
max –200
Power supply voltage Vsup, VDC
+5
Other information
Active elements material
epitaxial HgCdTe heterostructure
Number of elements
1×32 linear array
Active area of single element A, mm×mm
0.1×0.1
Distance between active elements, μm
50
Window
pAl2O3AR
Acceptance angle, Φ
~70°
Ambient operating temperature Ta, °C
10 to 30

Mechanical layout, mm

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