Multiband MID-IR Detection Module4EF-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.

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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 (T_a = 20°C)

Parameter	Typical value
	Channel 1	Channel 2	Channel 3	Channel 4
Optical parameters
Centre wavelength λ_CWL, µm	3.34	4.26	4.47	4.71
Filter bandwidth, nm	130±20	180±20	80±20	100±20
*Detectivity D (λcwl), cmHz^1/2/W*	≥2.4×10⁹	≥2.4×10⁹	≥2.3×10⁹	≥2.0×10⁹
Electrical parameters
*Voltage responsivity R_v (λ_cwl, R_load = 1 MΩ^)), V/W**	≥1.4×10⁴	≥1.4×10⁴	≥1.4×10⁴	≥1.1×10⁴
Low cut-off frequency f_lo, Hz	DC	DC	DC	DC
High cut-off frequency f_hi, kHz	100	100	100	100
Output impedance R_out, Ω	50	50	50	50
Output voltage swing V_out (R_load = 1 MΩ), V	1	1	1	1
Output voltage offset V_off, mV	max ±20	max ±20	max ±20	max ±20
Detection module power supply voltage V_sup, V_DC	±5.0
TEC controller power supply voltage, V	+5.0
Power consumption, W	5
Other information
Active elements material	epitaxial InAsSb heterostructure
Active area of single element A, mm×mm	1×1
Active area pitch, mm	4.5
Acceptance angle of single element, Φ	~36°	~36°	~36°	~36°
Ambient operating temperature T_a, °C	10 to 30
TEC controller	on board
Input-output socket	WR-MM (female) SMT 690367281676