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Balanced/autobalanced IR detection module based on two HgCdTe thermoelectrically cooled optically immersed photovoltaic detectorsNIPM-I-10
NIPM-I-10 is a detection module featuring two TE-cooled, optically immersed photovoltaic IR detectors based on an InAsSb superlattice heterostructure (PVIA-4TE-10-1x1-TO8-wZnSeAR-36), integrated with a two-channel, balanced/autobalanced, transimpedance amplifier and thermoelectric cooler controllers in one package. The detectors (signal and reference) are precisely matched to ensure an exceptionally high Common Mode Rejection Ratio (CMRR).
The NIPM-I-10 is designed for use in systems where radiation excess noise is the dominant factor, such as laser-based setups and certain FTIR spectrometers.
Features
Spectral range: 1.8 to 11.3 µm
Frequency bandwidth: DC to 2.0 MHz (typ.)
RoHS-compliant III-V material
Back-side illuminated
Unique immersion lens technology applied
Two channels with similar spectral and frequency characteristics
Manual switch between balance and autobalance modes
Integrated two TEC controllers and two fans
Low-noise performance and high detectivity
Single power supply
M6 mounting hole
Compatible with optical accessories
Applications
Gas detection, monitoring and analysis: SO2, NH3, SF6
Excess noise suppression of Quantum Cascade Laser (QCL) in gas analysis
Detection module configuration
| Detection module symbol | NIPM-I-10 |
| Number of detectors | 2 pcs |
| Detectors symbol | PVIA-4TE-10-1x1-TO8-wZnSeAR-36 |
| Detectors type | photovoltaic |
| Active element material | epitaxial InAsSb superlattice heterostructure |
| Optical area, Ao | 1 mm × 1 mm |
| Optical immersion | hyperhemisphere |
| Cooling | 4TE (Tchip≅210K) |
| Temperature sensor | thermistor |
| Acceptance angle, Φ | ~36 deg. |
| Window | wZnSeA (3 deg. wedged zinc selenide, anti-reflection coating) |
| Amplifier type | two-channel, balanced/autobalanced, transimpedance |
| Reference output socket | SMA |
| Signal output socket | SMA |
| Balance/autobalance socket (BAL/AUTOBAL) | SMA |
| Power supply socket | DC 2.1/5.5 |
Spectral response
(Typ., Tamb = 293 K, Tchip = 210 K, REF and SIG)
Mechanical layout (unit: mm)
Access to file
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Application notes
Temperature sensor characteristics
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