Multiband quadrant IR detection module

4EF-5 is a multiband four-channel infrared detection module. Thermoelectrically cooled photovoltaic multiple junction quadrant geometry detector, based on HgCdTe heterostructure, is integrated with four-channel transimpedance preamplifier. This module uses four band-pass filters with center wavelengths: 3.34 µm, 4.26 µm, 4.47 µm and 4.71 µm. 4EF-5 is suitable for detection of most common gases.

Features:
  • Integrated TE cooler controller
  • External heatsink necessary
  • Easy assembly
  • Module based on InAsSb material available upon request
  • Other filters available upon request
Applications:
  • Detection of gases:

CH4 (methane)
C2H6 (ethane)
CO2 (carbon dioxide)
N2O (nitrous oxide)
CO (carbon monoxide)

  • Flame and fire detection
  • Combustion process control
  • Explosives detection
  • Exhaust fumes analysis
Module configuration and parameters
Parameter Typical value
Channel 1 Channel 2 Channel 3 Channel 4
Active elements material epitaxial HgCdTe heterostructure
Active areas A, mm×mm 4×(1×1)
Active element pitch, mm 4.5
Active elements temperature Tdet, K ~230
Centre wavelength CWL, µm 3.34 4.26 4.47 4.71
Filter bandwidth 4 % of CWL (130 nm) 4 % of CWL (170 nm) 2% of CWL (80 nm) 2 % of CWL (90 nm)
Typical detectivity D*(CWL), cm·Hz1/2/W 1.0×109 1.0×109 1.0×109 1.0×109
-3dB Bandwidth 10 Hz to 10 kHz
Supply voltage positive +Vsup, V +5.5
Supply voltage negative –Vsup, V –5.5
TEC controller on board
TEC supply positive, V +5.5 (separated source is available)
TEC supply negative, V 0 (should be shorted to the GND)
Output impedance Rout, Ω 50
Socket WR-MM (female) SMT
Power consumption, W 5
Mechanical layout, mm
Multiband quadrant IR detection module
Multiband quadrant IR detection module
Channel 1 – green, Channel 2 – yellow, Channel 3 – blue, Channel 4 – red
Electrical interface – WR-MM (female) SMT socket

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