The C16531 series is a photon counting module that can detect low-level light. These modules consist of a thermoelectric cooled single photon avalanche diode (SPAD), an amplifier, a comparator, a SPAD bias circuit, and a temperature controller. The photosensitive area is available in two sizes of φ50 μm and φ100 μm, and such small photosensitive areas offer a low dark count. These modules operate by simply connecting to an external power supply (±5 V).
Wavelength type | VIS to NIR |
---|---|
Built-in sensor | SPAD |
Effective photosensitive area | φ100 μm |
Spectral response range (min./max.) | 400 to 1000 nm |
Dark count (typ.) | 150 cps |
Photon detection efficiency (typ.) | 65 % |
Output | Digital |
Measurement condition | Ta=25 ℃, λ=λp, Vs=±5 V |
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Maxi International (HK) Co., Limited