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IR linear InGaAs arrays integrate charge amplifying mux

Posted: 30 Aug 2007 ?? ?Print Version ?Bookmark and Share

Keywords:near-IR spectroscopy? InGaAs linear photodiode arrays?

XenICs has introduced the XLIN 1.7/2.2/2.5 series of InGaAs linear photodiode arrays with a novel layout as a hybrid assembly of photodiodes integrated with a charge-amplifying mux.

The XLIN series excels has high detection, linearity and uniformity features, as well as good stability and a wide dynamic range. XLIN comes with three pixel counts: 128, 256 or 512. It offers a wavelength response up to 2.5?m and a read-out rate of more than 9,000 lines per second. A temperature sensor is built into the array. XLIN 1.7 is suited for 0.9 to 1.7?m wavelengths; XLIN 2.2 operates up to 2.2?m, and XLIN 2.5 goes up to 2.5?m. Additionally, XLIN 1.7-512 is available with square pixels.

The XenICs XLIN arrays are hermetically sealed in a standard flat bottom package with a coated anti-reflection window and extending fixation flanges. This ensures an optimum thermal coupling of the device. The built-in mux, along with thermoelectric coolers (TE1, TE2 or TE3) further reduce the dark current and noise of the array and enable longer integration times. Four integration capacitors (0.1-16pF) can be selected.

Applications cover all aspects of near-IR spectroscopy and spectral characterization. The XLIN arrays enable thermal imaging of hot objects in the 200C to 800C range. In industrial high-tech manufacturing XLIN serves as in-line process control and non-destructive inspection tool. In agriculture, XLIN opens up new ways of food inspection, plant monitoring and moisture measurement tasks.

The InGaAs arrays are also available ready-mount in the compact XenICs XEVA-LIN digital camera.

- Henri Arnold
EE Times Europe

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