AM03120-01, Affordable MWIR InAsSb detection module, is an ”all-in-one” uncooled IR detection module in a compact TO8 package. Photovoltaic mutiple junction InAsSb detector element is directly integrated with a low-noise preamplifier. Amplified analog output may be connected directly to the measurement equipment. Through-hole mounting is possible.
The detection module is supplied with an anti-reflection coated window preventing unwanted interference effects. The final product can be offered as an OEM component (only PCB with detector element), mounted on a TO8 sumbount or mounted and sealed in a TO8 package with a window.
Table 1. Specification (Ta = 20°C, RL = 1 MΩ, f0 = 500 kHz)*.
| Parameter | Min | Typ | Max |
| Cut-on wavelength λcut-on (10%), µm | – | 2.3 | – |
| Peak wavelength λpeak, µm | 4.4 | 4.6 | 4.7 |
| Cut-off wavelength λcut-off (10%), µm | – | 5.9 | – |
| Detectivity D*(λpeak), cm·Hz1/2/W | 3.4×108 | 5.5×108 | – |
| Output noise voltage density vn, nV/Hz1/2 | – | 100 | 130 |
| Noise equivalent power NEP(λpeak), nW/Hz1/2 | – | 0.18 | 0.30 |
| Voltage responsivity Rv(λpeak), V/W | – | 559 | – |
| Low cut-off frequency flo, Hz | – | DC | – |
| High cut-off frequency fhi, Hz | 2M | – | – |
| Transimpedance Ki, V/A | 4.65k | 4.70k | 4.75k |
| Output impedance Rout, Ω | 49.5 | 50.0 | 50.5 |
| Output voltage Vout, V | 0 0 |
– – |
2.50 (RL = 1 MΩ) 1.25 (RL = 50 Ω) |
| Output voltage offset Voff, mV | -10 | – | +10 |
| Power supply voltage Vsup, V | – | ±3 | – |
| Power supply current Isup, mA | – | – | 20 |
| Power consumption, mW | – | – | 120 |
| Active element material | epitaxial InAsSb heterostructure | ||
| Active area A, mm×mm | 1×1 | ||
| Package | TO8 | ||
| Acceptance angle Φ | ~48° | ||
| Window | wZnSeAR | ||
Key features of the product
The modules are easy to use thanks to:
- signal already amplified, voltage output,
- availability on a standard submount (TO8),
- availability for a direct mounting onto user’s PCB (OEM version),
- small size.
Applications
Affordable detection module is used in various applications. Due to its high speed response, it is suitable for applications when MWIR fast pulse laser carries information, for example MWIR spectroscopy. Affordable module is designed for space limited and low power applications. It saves space due to a built-in trans-impedance preamplifier which is not necessary in customer’s application. Its added benefit is a low power consumption which suits, i.e., battery operation devices. Remaining applications are the following: laser metrology, monitoring of industrial and laboratory processes, laser power monitoring and control. The device is being developed in terms of creating new features: digital output, thermoelectric cooling etc.
