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Home Products Shortwave Infrared Swir Cheetah-640-CL
Cheetah 640 - InGaAs Infrared Camera

The Cheetah-640-CL camera is the fastest InGaAs infrared camera in the world. The camera has been designed for applications where high speed imaging matters. Whether for adaptive optics, spectral analysis in the SWIR band, tracking of fast and hot objects, electro-coalescence, etc.

This unit is equipped with a dedicated high speed InGaAs detector array working up to 1.7 μm and comes in three speed versions: 444, 865 and 1730 Hz. It allows you to visualize the ultra high speed features of your specific research application.

The TE1-cooling reduces dark current and improves signal to noise ratios for contrast-rich and stable imaging performance.

The camera head interfaces to your frame grabbing system via CameraLink (base, full or dual medium – depending on the version).

The Cheetah-640-CL is delivered with a software development kit which offers direct access to various camera settings and allows easy integration with your own high speed image grabbing system.

Xenics Cheetah 640 CL Technical Specifications
Camera ModelCheetah-640-CL 400HzCheetah-640-CL 800HzCheetah-640-CL 1700Hz
Array typeInGaAs photodiode arrayInGaAs photodiode arrayInGaAs photodiode array
Resolution640 x 512640 x 512640 x 512
Pixel size 20 µm x 20 µm 20 µm x 20 µm 20 µm x 20 µm
Spectral band 0.9 μm to 1.7 μm (VisNIR optional 0.4 to 1.7 μm) 0.9 μm to 1.7 μm (VisNIR optional 0.4 to 1.7 μm) 0.9 μm to 1.7 μm (VisNIR optional 0.4 to 1.7 μm)
Pixel operability > 99 % > 99 % > 99 %
Array size 12.8 mm x 10.2 mm; 16.4 mm diagonal 12.8 mm x 10.2 mm; 16.4 mm diagonal 12.8 mm x 10.2 mm; 16.4 mm diagonal
Array cooling TE1-cooled (Optional: TE3) TE1-cooled (Optional: TE3) TE1-cooled (Optional: TE3)
Dark current <2 x 10⁵ e -/s <2 x 10⁵ e -/s <2 x 10⁵ e -/s
Optical Interface C-mount - Spectrometer holes C-mount - Spectrometer holes C-mount - Spectrometer holes
Max frame rate (full frame)444 Hz865 Hz1730 Hz
Window of interest Minimum size 32 x 4 Minimum size 32 x 4 Minimum size 32 x 4
Exposure time range 1 μs up to 40 ms @ 25°C sensor temperature (high gain mode); or up to 100 ms @ 268K sensor temperature (high gain mode) 1 μs up to 40 ms @ 25°C sensor temperature (high gain mode); or up to 100 ms @ 268K sensor temperature (high gain mode) 1 μs up to 40 ms @ 25°C sensor temperature (high gain mode); or up to 100 ms @ 268K sensor temperature (high gain mode)
Gain modesHigh gain and low gainHigh gain and low gainHigh gain and low gain
Noise 138 e- rms (high gain) 138 e- rms (high gain) 138 e- rms (high gain)
Dynamic range 470:1 (>53 dB) (high gain) 470:1 (>53 dB) (high gain) 470:1 (>53 dB) (high gain)
Camera controlCameraLink (serial LVDS line on CameraLink port 1)CameraLink (serial LVDS line on CameraLink port 1)CameraLink (serial LVDS line on CameraLink port 1)
Image acquisition Base CameraLink (12 bit) Medium CL (12 bit)) Full CameraLink (8 bit), 2 x medium CameraLink (12 bit)
TriggerTrigger in and out (3.3 V CMOS)Trigger in and out (3.3 V CMOS)Trigger in and out (3.3 V CMOS)
Power consumption< 4 W without TEC operation; 25 W at maximum cooling< 4 W without TEC operation; 25 W at maximum cooling< 4 W without TEC operation; 25 W at maximum cooling
Power supply 12 V 12 V 12 V
Camera coolingForced air coolingForced air coolingForced air cooling
Ambient operating temperature range0°C to 50°C0°C to 50°C0°C to 50°C
Dimensions (W x H x L mmᵌ)140 x 135 x 90140 x 135 x 90140 x 135 x 90
Weight camera head2 kg2 kg2 kg