This single element detector is effective in sensing wavelengths between 1000 nm and 3500 nm. This unit is a high performance photodiode/receiver operated with at ambient temperature with a dual gain FET input transimpedence amplifier. Please note that it is available in various sensor area sizes and has an available thermo-electric cooler for lower dark current and improved signal to noise. The output is an analog signal available through a BNC connector at the back of the detector housing. Since the signal is analog, an optional 12-bit and 16-bit data acquisition system and software is available to digitize its output into a computer. A DC power supply for this detector (sold separately) is also required. This detector is designed for use with scanning monochromators to capture the intensity of one wavelength at a time. An optional mount allows it to mate to any Sciencetech scanning monochromators. Sciencetech can also provide an optional custom mount for mating to non-Sciencetech monochromators and spectrographs. The output voltage is proportional to the input signal current: V_out = I_signal . R_f . The PD/AMP is a DC coupled dual gain system. Care should be taken in shielding the unit from stray light during operation to prevent saturation of the amplifier (and potential failure). Technical Specifications

• Operating temperature: 22°C; -30°C (cooled)
• Shunt resistance: 15Ω; 500Ω (cooled)
• Shunt capacitance: 400pF; 450pF (cooled)
• Responsivity: 1.0A/W; 1.4A/W (cooled)
• Thermistor resistance: 1.7kΩ; 40.0kΩ (cooled)
• Cooler current: 0.00A; 0.65A typ. (cooled)
• Maximum cooler current: 1.25A