Compact image sensors can transform spectrophotometry, empowering researchers and engineers to collect accurate data in less time.
Hamamatsu Photonics has launched the G1682x series, a compact Indium-Gallium-Arsenide (InGaAs) linear image sensor designed for near-infrared multichannel spectrophotometry. The series is designed to offer high sensitivity, easy operation, and efficiency. Calibrated as a versatile and cost-effective tool, beneficial for quality control, process optimisation, and research applications across industrial, academic, and OEM sectors. Developed for a wide user base that includes manufacturers, process engineers, researchers, R&D laboratories, and OEM developers, the image sensors have a lightweight and portable design. The company claims to ensure reliable analysis across diverse environments.
“We are proud to introduce the G1682x series, providing a robust solution for near-infrared applications. Its compact design and practical features are tailored to meet the evolving needs of our customers in the field of spectrophotometry,’ comments Luigi Ghezzi, Technical Marketing Engineer at Hamamatsu Photonics.
The sensors can enhance productivity through simultaneous multichannel analysis, enabling faster, broader data collection without compromising accuracy. This capability supports real-time monitoring and process adjustments, giving industries and research teams improved operational efficiency. The new sensors also ensure easy integration into existing systems.
At the technical core, the series combines an InGaAs photodiode array with a CMOS chip for stable operation in the 0.9 µm–2.1 µm near-infrared range. Users can optimise performance via selectable conversion efficiency, adjusting between conversion efficiency (CE) = 16 nV/e⁻ to 160 nV/e⁻ through external voltage. Unlike earlier long-wavelength models that required thermoelectric cooling (TE cooling), this series operates uncooled at zero bias, maintaining low dark current while reducing cost and complexity.
The sensors run at a low 3.3 V drive voltage. Pixel configurations vary by model, with the G16823-128DB using 50 µm × 250 µm pixels, while the G16823, G16824, and G16825-256DG feature 25 µm × 250 µm pixels, ensuring reduced power consumption without performance loss.
