|||| ||||

For measurements in the near-infrared range up to 1.7 µm, Avantes offers a new series of uncooled spectrometer configurations. The AvaSpec-NIR256-1.7-EVO and the AvaSpec-NIR512-1.7-EVO offer the same high-sensitivity optical bench, but with the next generation of electronics. Both instruments deliver the same exceptional performance specifications, such as a sample speed of only 0.53 ms/scan and integration times as fast as 10 µs, as the Avantes instruments you have come to trust.

For applications where resolution is key, or more datapoints for modelling are required, the 512 pixel detector will be the best choice.

The AvaSpec-NIR256/512-1.7-EVO spectro-meters pair the same trusted InGaAs array detectors with our ultra low-noise electronics board featuring USB3 and Giga-Ethernet connection port. Digital and analog I/O ports enable external triggering and control over the shutter and pulsed lightsources and choose from two distinct software-controlled gain-setting modes, high-sensitivity mode (HS, default) and the low-noise mode (LN).

These affordable, uncooled instruments are USB powered and are available with a choice of four gratings and replaceable slit options to match the bandwith and requirements fitting your application.

Did you know the AvaSpec-NIR257-1.7 has a little brother? Our new AvaSpec-Mini-NIR uses the same detector as its bigger counterpart, but in a much smaller package. This makes it perfect for OEM use and integration into handheld devices. Click here to find out more about the AvaSpec-Mini-NIR!



Spectrometer AvaSpec-NIR256-1.7-EVO AvaSpec-NIR512-1.7-EVO
Optical Bench Symmetrical Czerny-Turner, 50 mm focal length
Wavelength range 900 - 1750 nm
Resolution 2.0 - 50 nm
Stray light <1%
Sensitivity HS in counts/µW per ms integration time 8,200,000 (integral 1000-1750 nm) 3,800,000 (integral 1000-1750 nm)
Signal/Noise HS 1900:1
Integration time HS 10 µs - 500 ms
Sensitivity LN in counts /µW per ms integration time 469,000 (integral 1000-1750 nm) 222,000 (integral 1000-1750 nm)
Signal/Noise LN 5000:1 
Integration time LN 10 µs - 10 seconds 
Detector InGaAs linear array, 256 pixels, 50µm x 500µm InGaAs linear array, 512 pixels, 25µm x 500µm 
AD converter 16 bit, 500kHz 
Interface USB 3.0 high speed, 5 Gbps, Gigabit Ethernet 1 Gbps
Sample speed with store to RAM 0.53 ms/scan 
Data transfer speed

0.53 ms/scan (USB3)

Digital IO HD-26 connector, 2 Analog in, 2 Analog out, 3 Digital in, 13 Digital out, di-directional, trigger, synchronization, strobe, laser
Power supply Default USB power, 600 mA or external 12VDC, 320 mA (4W) 
Dimensions, weight 185 x 84 x 185 mm, 2.7 Kg 


  Use Spectral range (nm) Lines/mm  Blaze (nm)  Order code
NIR 900-1750 850 200 1500 NIR200-1.5
NIR 1000-1700 340 400 1600 NIR400-1.6







NIR 1300-1600 170 600 1600 NIR600-1.6


Slit size (µm)
Grating (lines/mm) 25* 50 100 200 500
200 6 8 12 22 50
400 2.5 3 6 12 25
600 n.a. 2 4 8


*only for AvaSpec-NIR512

Order Info

AvaSpec-NIR256-1.7- EVO              Fiber-optic spectrometer, 50 mm AvaBench, 256 pixel InGaAs detector, high-speed USB3 Fiber-optic Spectrometer, 50 mm AvaBench, 256 pixel InGaAs detector, high-speed USB3 and ETH interface, with replaceable slit, incl. AvaSoft-Basic, USB interface cable, OSF-850/1000-3. Specify grating, wavelength range and slit.

Fiber-optic spectrometer, 50 mm AvaBench, 512 pixel InGaAs detector, high-speed USB3Fiber-optic Spectrometer, 50 mm AvaBench, 512 pixel InGaAs detector, high-speed USB3and ETH interface, with replaceable slit, incl. AvaSoft-Basic, USB interface cable,OSF-850/1000-3.Specify grating, wavelength range and slit.

PS-12V/1.0 External power supply, needed for operation in ETH mode.


SLIT-XX-RS Replaceable slit with SMA connector, specify slit size XX=25, 50, 100 or 200 µm
SLIT-XX-RS-FCPC As SLIT-XX-RS, but with FC/PC connector


folder AvaSoft  spectroscopy software
Please note that you need to login