4EF-5 detection module

4EF-5 – ENGINEERING SAMPLE
Four band mid-IR 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 coolercontroller. 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.

Spectral response (Ta = 20°C)
3.0E+09

D*, cm·Hz1/2/W

CH2 CH3CH1

2.5E+09CH4

2.0E+09
1.5E+09
1.0E+09
5.0E+08
0.0E+00
3.0

3.2

3.4

3.6

3.8 4.0 4.2 4.4
Wavelength, µm

4.6

4.8

5.0

Exemplary spectral detectivity, the spectral response of delivered devices may differ.

FeaturesApplications

Integrated TEC controller
Easy assemblyCompatible with optical accessories
Other filters available upon request

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
Optical characteristics
Centre wavelength λCWL, µm
Filter bandwidth, nm
Detectivity D* (λCWL), cm·Hz1/2/W
Output noise density vn (10 kHz), nV/Hz1/2
Electrical parameters
Voltage responsivity Rv (λCWL, RL = 1 MΩ*)), V/W
Low cut-off frequency flo, Hz
High cut-off frequency fhi, kHz
Output impedance Rout, ΩOutput voltage swing Vout (RL = 1 MΩ*)), VOutput voltage offset Voff, mV
Detection module power supply voltage Vsup, VDC
TEC controller power supply voltage, VPower consumption, W
Other information
Active elements material
Active areas A, mm×mm
Active element pitch, mm
Acceptance angle of single element Φ
Ambient operating temperature Ta, °C
TEC controller
Input-output socket*)

Channel 1

Typical value
Channel 2
Channel 3

Channel 43.34
130±20≥2.4×109≤700

4.26
180±20≥2.4×109
≤700

4.47
80±20
≥2.3×109≤700

4.71
100±20≥2.0×109≤700≥1.4×104DC100
501
max±20≥1.4×104DC10050
1max±20≥1.4×104DC
10050
1max±20≥1.1×104DC
10050
1max±20±5.0
+5.0
5~36°

epitaxial InAsSb heterostructure
4×(1×1)
4.5~36°~36°
10 to 30
on board
WR-MM (female) SMT 690367281676~36°

RL – load resistance

Page |105/01/2022

Engineering samples are manufactured for purposes of research and development. Values of parameters mentioned in the datasheet are for guidance
only and may not be used as guaranteed values.
VIGO System S.A. reserves the right to change these specifications at any time without notification.
www.vigo.com.pl4EF-5 detection module

Mechanical layout, mmSignal output and power supply socket
WR-MM (female) SMT 690367281676

Function
GroundChannel 1 output
Channel 2 output
Channel 3 output
Channel 4 output
Not connected
Power supply input (+)
Power supply input (–)
TEC ground
TEC supply input (+)

Symbol
GND
CH1
CH2
CH3
CH4NC+Vsup–Vsup
TEC GND
TEC+

Included accessories

2×8 WR-MM ribbon cable

Pin number
1, 3, 5, 7, 9, 11, 13246810
12
14
15
16Page |205/01/2022

Engineering samples are manufactured for purposes of research and development. Values of parameters mentioned in the datasheet are for guidance
only and may not be used as guaranteed values.
VIGO System S.A. reserves the right to change these specifications at any time without notification.
www.vigo.com.pl