Ocean Optics EMBED2000+ User Manual

EMBED2000+ Data Sheet

Description

The Ocean Optics EMBED2000+ Spectrometer includes the linear CCD-array optical bench, plus all
the circuits necessary to operate the array and convert to a digital signal. The result is a compact,
flexible system, with no moving parts, that's easily integrated as an OEM component.

The EMBED2000+ Spectrometer is a unique combination of technologies providing users with both
an unusually high spectral response and high optical resolution in a single package. The electronics
have been designed for considerable flexibility in connecting to various modules as well as external
interfaces. The information included in this guide provides detailed instructions on the connection and
operation of the EMBED2000+.

The detector used in the EMBED2000+ spectrometer is a high-sensitivity 2048-element CCD array
from Sony, product number ILX511B. (For complete details on this detector, visit Sony’s web site at
www.sony.com. Ocean Optics applies a coating to all ILX511 detectors, so the optical sensitivity
could vary from that specified in the Sony datasheet).

The EMBED2000+ operates off of a single +3.3VDC supply.

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EMBED2000+ Data Sheet

Features

• ILX511B Detector

• High sensitivity detector

• Readout Rate: 2.4MHz

• Optics

• An optical resolution of ~0.3nm (FWHM)

• A wide variety of optics available

• 14 gratings, plus Grating #31for the XR version

• 6 slit widths

• 3 detector coatings

• 6 optical filters

• Electrical Performance

• 16 bit, 3.3MHz A/D Converter

• Integration times from 1ms to > 60s

• EEPROM storage for

• Wavelength Calibration Coefficients

• Linearity Correction Coefficients

• Built-in triggering for easy synchronization to an event from 1 of 2 pin sources

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EMBED2000+ Data Sheet

Specifications

Specifications Criteria

Absolute Maximum Ratings:
V

CC

Voltage on any non-Vcc pin
Physical Specifications:

Physical Dimensions
Weight

Power:
Supply voltage
Power requirement

Spectrometer:
Design
Focal length (input)
Focal length (output)
Input Fiber Connector
Gratings
Entrance Slit

Detector
Filters

Spectroscopic:
Integration Time
Dynamic Range
Signal-to-Noise
Readout Noise (single dark spectrum)
Resolution (FWHM)

Stray Light
Spectrometer Channels

Environmental Conditions:
Temperature
Humidity

5 VDC

3.5 VDC

89.1 mm x 63.3 mm x 34.4 mm
190 g

2.63 - 3.3 VDC
100 mA @ 3.3 VDC

Asymmetric crossed Czerny-Turner
42mm
68mm (75, 83, and 90mm focal lengths are also available)
SMA 905
14 different gratings, plus Grating #31 for the XR version
5, 10, 25, 50, 100, or 200 μm slits. (Slits are optional. In the

absence of a slit, the fiber acts as the entrance slit.)
Sony ILX511B CCD

nd

2

and 3rd order rejection, long pass (optional)

1 ms – >60 sec
1300:1 (per pixel)
250:1 single acquisition
50 counts RMS, 300 counts peak-to-peak

0.03 – 10.0 nm varies by configuration (see

www.Oceanoptics.com

<0.05% at 600 nm; <0.10% at 435 nm
One

-30° to +70° C Storage & -10° to +50° C Operation
0% - 90% non-condensing

for configuration options)

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EMBED2000+ Data Sheet

Internal Operation

Pixel Definition

A series of pixels in the beginning of the scan have been covered with an opaque material to
compensate for thermal induced drift of the baseline signal. As the EMBED2000+ warms up, the
baseline signal will shift slowly downward a few counts depending on the external environment. The
baseline signal is set between 1900 and 2000 counts at the time of manufacture. The following is a
description of all of the pixels, both as they exist on the hardware device and as they are actually read
from the FPGA.

Pixels on the Device

Pixel Description

0–17 Not usable
7–24 Optical black pixels
25–26 Not usable
27–2074 Optical active pixels

Note that the EMBED2000+ only digitizes pixels 7 through 2054. During readout the first pixel is the
first optical bla ck pix e l.

CCD Detector Reset Operation

At the start of each integration period, the detector transfers the signal from each pixel to the readout
registers and resets the pixels. The total amount of time required to perform this operation is ~3 µs.
When using trigger mode the user needs to account for this time delay when the pixels are optically
inactive.

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