Avantes AVASPEC-128 - Page 33

32 Apr-09
Avantes www.avantes.com info@avantes.com
2.8 AvaSpec-2048x14 High UV-sensitivity back-thinned CCD Spectrometer
AvaSpec-2048x14
The AvaSpec-2048x14 Fiber Optic Spectrometers is a
back-thinned type CCD spectrometer with high
quantum efficiency and high UV sensitivity. The
optical design is based on the AvaBench-75
symmetrical Czerny-Turner design with a 2048x14
pixels high UV sensitive CCD image sensor. The image
sensor is used as a linear array of 2048 pixels binning
the vertical 14 pixels to optimize efficiency. The
spectrometer has a fiber optic entrance connector
(standard SMA, others possible), collimating and
focusing mirror and a diffractional grating. A choice
of 16 different gratings with different dispersion and
blaze angles enable applications in the 200-1160nm
range. The AvaSpec-2048x14 comes with a 16 bit AD converter, and USB2.0 high speed interface.
The AvaSpec- 2048x14 is especially suitable for measuring low light, fluorescence and UV-
applications. Digital IO ports enable external triggering and control of shutter and pulsed light
sources from the Avantes line of instruments.
The new AvaSpec-2048x14 has a USB2 interface with fast data sampling of 450 spectra per second
and data transfer in 2.24 msec and supports analog in-and outputs as well. Optional Bluetooth (-
BT) communication and an SD card for on-board saving of spectra can be added. The AvaSpec-
2048x14-USB2 runs on USB power and comes with AvaSoft-basic, a complete manual and USB
interface cable. Multiple (up to 127) USB2 spectrometers with different
detector types can be externally coupled (see section multi-channel
spectrometers, page 32).
Technical Data
Optical Bench
Symmetrical Czerny-Turner, 75 mm focal length
Wavelength range
200 - 1160nm
Resolution
0.04 20 nm, depending on configuration (see table)
Stray light
< 0.1%
Sensitivity (AvaLight-HAL, 8 µm fiber)
16.000 counts (16-bit AD)/µW per ms integration time
UV Quantum efficiency
35-65% (200-300nm)
Detector
Back-thinned CCD image sensor 2048x14 pixels
Signal/Noise
500:1
AD converter
16 bit, 1.5 MHz
Integration time
2.24 ms  10 min.
Interface
USB 2.0 high speed, 480 Mbps
RS-232, 115.200 bps
Sample speed with on-board averaging
2.24 msec /scan
Data transfer speed
2.24 msec /scan
Digital IO
HD-26 connector, 2 Analog in, 2 Analog out, 3 Digital in, 12
Digital out, trigger, synchronization
Power supply
Default USB power, 350 mA
Or with SPU2 external 12VDC, 350 mA
Dimensions, weight
175 x 110 x 44 mm(1 channel), 716 grams