OPB780KIT OPTEK TECHNOLOGY, OPB780KIT Datasheet - Page 2

• Manufacturer Part Number: OPB780KIT
• Description: LED Accessory
• Manufacturer: OPTEK TECHNOLOGY
• Type: Transmissiver

Specifications of OPB780KIT

• Core Chip: OPB780Z
• Kit Contents: OPB780 Sensor, PC Board, USB A/B Interface Cable And USB Flash Drive W/software, Data Sheet And Instructions.
• Tool / Board Applications: Color Sensor Modules
• Primary Type: Photoelectric
• For Use With: OPB780Z
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

OPB780-Kit
Color Sensor Evaluation Kit
Issue A.2
Page 2 of 9
The OPB780Z consist of:
All 16 photodiodes that have the same color filter are
connected in parallel. Package pin numbers 4 (S2)
and 6 (S3) can be used to select the desired
photodiode/filter
identification. All 64 photodiodes are 120µm x 120µm
in size and are on 144µm centers.
The output frequency provided by the OPB780Z may
vary from part to part and should be calibrated as
required to meet each application. The more colors
that are to be identified require more accurate
calibration and longer sampling rate. A small amount
of jitter will be present in the frequency provided for a
color and must be taken into consideration depending
on the accuracy required.
The internal scaling is preconfigured for the highest
frequency output of typically 600kHz.
frequency shortens the sampling time providing a
small amount of jitter in the output frequency.
The user must take into consideration the luminance
intensity (amount of light) that may be acknowledged
by the human eye.
decreases, the amount of color recognized is
diminished.
specific color with the same output frequency, the
luminance intensity must be the consistent.
critical identification of specific colors is required, the
angle of view and distance may critical characteristics.
1. White LED for illumination of the target
2. Photodiode Array consisting of:
3. Current to Frequency Converter
4. TTL and CMOS Drive Circuitry
5. Plastic Package with 10: (25.4cm) FFC
Frequency-A
11/09
16 Green Filter Diodes
16 Clear Filter Diodes
16 Red Filter Diodes
16 Blue Filter Diodes
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
In order to consistently reproduce a
configuration
As the luminance intensity
Phone: [phone] or [phone]
to
Frequency-B
optimize
The 600kHz
When
color
The OPB780Z photodiodes as provided are designed
to recognize ultraviolet, visible as well as near infrared
wavelengths (from 300 to 1,050 nanometers)
graphs below show the typical Spectral Response for
each photodiode configuration. When a near infrared
rejecting filter similar to the Hoya CM500 is placed in
front of the sensor, the higher wavelengths (above 700
nm) are eliminated thus enhancing recognition of
colors in the visible range.
The standard product allows the OPB780Z to be used
to recognize colors over the full wavelength of 300nm
to 1100nm beyond those of the human visual range.
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
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FAX: [phone] [e-mail] www.optekinc.com
300
300
Full Wavelength Sensitivity
Typical Spectral Response
Spectral Response
500
λp Wavelength (nm)
500
λp Wavelength (nm)
700
700
Clear @ 530 nm
Clear @ 680 nm
No rmalized to
No rmalized to
900
TA = 25° C
900
TA = 25° C
1100
1100
The