VIGO System’s 4EM-5 with a Photovoltaic Four-Element Linear Detector is a multipurpose IR multi-channel detection module. The thermoelectrically cooled photovoltaic four-element linear detector has been developed based on HgCdTe heterostructure. It is combined with a DC-coupled four-channel preamplifier, transimpedance, a fan and a thermoelectric cooler controller in a compact housing.
Features
- Crosstalk is low
- Includes four channels
- Compatible with optical accessories
- Works on a single power supply
Spectral response (Ta = 20 °C). Image Credit: VIGO System
Specification (Ta = 20 °C)
Source: VIGO System
| 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 Rv(λpeak, R = 1 MΩ*)), V/W |
≥1.7×105 |
| Voltage responsivity Ri(λopt, 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
Image Credit: VIGO System