Four band mid-IR Detection Module

4EF-5

InAsSb Four-Channel Detection Module

4EF-5 is a multiband, four-channel infrared detection module. Thermoelectrically cooled photovoltaic multiple junction four-element 2×2 array detector, based on InAsSb heterostructure, is integrated with four-channel transimpedance preamplifier and thermoelectric cooler controller. This module uses four band-pass filters with centre wavelengths: 3.34 µm (CH1), 4.26 µm (CH2), 4.47 µm (CH3) and 4.71 µm (CH4). 4EF-5 is suitable for the detection of common gases.

See specification

Features

Integrated TEC controller

Easy assembly

Compatible with optical accessories

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

Specification (Ta = 20°C)

Parameter
Typical value
Channel 1
Channel 2
Channel 3
Channel 4
Optical parameters 
Centre wavelength λCWL, µm
3.34  4.26  4.47  4.71
Filter bandwidth, nm
130±20 180±20 80±20 100±20
Detectivity D* (λCWL), cm⋅Hz1/2/W
≥2.4×109
≥2.4×109
≥2.3×109
≥2.0×109
Electrical parameters
Voltage responsivity RvCWL, RL = 1 MΩ*)), V/W
≥1.4×104
≥1.4×104
≥1.4×104
≥1.1×104
Low cut-off frequency flo, Hz
DC  DC  DC  DC
High cut-off frequency fhi, kHz 100  100  100  100
Output impedance Rout, Ω 50 50 50 50
Output voltage swing Vout (R = 1 MΩ*)), V 1  1  1  1
Output voltage offset Voff, mV
max ±20 max ±20 max ±20 max ±20
Detection module power supply voltage Vsup, VDC
 ±5.0
TEC controller power supply voltage, V
+5.0
Power consumption, W
5
Other information
Active elements material
epitaxial InAsSb heterostructure
Active areas A, mm×mm
4×(1×1)
Active area pitch, mm
4.5
Acceptance angle of single element, Φ
~36° ~36° ~36° ~36°
Ambient operating temperature Ta, °C
10 to 30
TEC controller
on board
Input-output socket
WR-MM (female) SMT 690367281676
*) RL – load resistance

Spectral response (Ta = 20°C)

Mechanical layout, mm

4EF-5-2

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Temperature sensor characteristics

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