HgCdTe (MCT) Four-Channel Detection Module

3.5 – 6.0 µm, DC – 1 MHz, with photovoltaic four-element linear detector

4EM-5 is „all-in-one” IR multi channel detection module. Thermoelectrically cooled photovoltaic four-element linear detector, based on HgCdTe heterostructure, is integrated with transimpedance, DC coupled four-channel preamplifier, a fan and a thermoelectric cooler controller in a compact housing.

Spectral response (Ta = 20°C)

Features

  • Four channels
  • Low crosstalk
  • Single power supply
  • Compatible with optical accessories

Specification (Ta = 20°C)

Parameter
Typical value
Optical parameters
Cut-on wavelength λcut-on (10%) µm
3.5±0.5
Peak wavelength λpeak, µm
4.5±0.5
Optimum wavelength λopt, µm
5.0
Cut-off wavelength λcut-off (10%) µm
6.0±0.5
Detectivity D*(λpeak), cm⋅Hz1/2/W
≥1.4×109
Detectivity D*(λopt), cm⋅Hz1/2/W
≥1.2×109
Output noise density vn(100 kHz), nV/Hz1/2
≤500
Electrical parameters
Voltage responsivity Rvpeak, R = 1 MΩ*)), V/W
≥1.7×105
Voltage responsivity Rvopt, R = 1 MΩ*)), V/W
≥1.6×105
Low cut-off frequency flo, Hz
DC
High cut-off frequency fhi, Hz ≥1M
Output impedance Rout, Ω 50
Output voltage swing Vout(R = 1 MΩ*)), V 0 – 4
Output voltage offset Voff, V
max ±20
Power supply voltage Vsup, V
+7.5
Power consumption, W
max 6
Other information
Active elements material
epitaxial HgCdTe heterostructure
Active areas A, mm×mm
4×(0.2×0.2)
Distance between active elements, mm
0.05
Window
pSiAR
Acceptance angle, Φ
~70°
Ambient operating temperature Ta, °C
10 to 30
Signal output sockets
4×MCX
Power supply socket
DC 2.1/5.5
Mounting hole
M4
Fan
yes
*) RL – load resistance

Mechanical layout, mm

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please contact us.