OPB780Z Optek Technology (TT electronics), OPB780Z Datasheet

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OPB780Z

Manufacturer Part Number
OPB780Z
Description
Manufacturer
Optek Technology (TT electronics)
Datasheet

Specifications of OPB780Z

Lead Free Status / RoHS Status
Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
OPB780Z
Manufacturer:
MAXIM
Quantity:
1 000
Reflective Color Sensor Assembly
OPB780Z
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747
Features:
Description:
The OPB780Z color sensor uses a light-to-frequency converter that combines 64 configurable silicon photodiodes
(on a 144 um center and measuring 120 um x 120 um each), with a white LED in a small, lightweight package that
makes it ideal for using in miniature applications.
The output is a square wave (50% duty cycle) with a frequency directly proportional to reflected light intensity
(irradiance).
The light-to-frequency converter reads an 8 x 8 array of photodiodes that consists of four groups of 16 photodiodes
each, segregated by color: 16 photodiodes with red filters, 16 photodiodes with green filters, 16 photodiodes with
blue filters and 16 clear photodiodes with no filters. Each color’s group of 16 photodiodes is interdigitated to
minimize the effect of non-uniformity of the incident irradiance. Each color’s group is also connected in parallel.
The type of photodiode used during operation is pin-selectable.
The output of the device is designed to drive a standard TTL or CMOS logic input over short distances.
The internal photodiode used by the device is controlled by two logic inputs, S2 and S3. See page 4 for more
information.
A 10 “ [25.4 cm] Flat Flexible Cable (FFC) is included for easy hook-up.
The FFC is designed to interface with an AVX (ELCO) part number 04 6249 0080 00 800 connector.
For more information, contact your local representative or OPTEK.
Applications:
RoHS
High-resolution conversion of light intensity to frequency
Selectable color output frequency
Communicates directly with a microcontroller
Sensor power supply operation (2.7 V to 5.5 V)
LED power separate input
Includes LED, Sensor and interface cable
Photographic equipment
Colormetry
Chemical analyzers
Display contrast controls
High resolution digital measurement of light
intensity
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Light
Photodiode Array
OPB780Z
S2
KA3128
6
S3
4
Ordering Information
OPB780 with 10” Long Flat Flex Cable
Block Diagram
10” Long Flat Flex Cable
Current-to-Frequency
Converter
Issue A.5
Out
Page 1 of 6
3
6/09

Related parts for OPB780Z

OPB780Z Summary of contents

Page 1

... Includes LED, Sensor and interface cable Description: The OPB780Z color sensor uses a light-to-frequency converter that combines 64 configurable silicon photodiodes (on a 144 um center and measuring 120 um x 120 um each), with a white LED in a small, lightweight package that makes it ideal for using in miniature applications. ...

Page 2

... Reflective Color Sensor Assembly OPB780Z 1, 2 Absolute Maximum Ratings Operating Temperature Storage Temperature LED—Absolute Maximum Ratings Reverse Voltage Forward Current Power Dissipation Peak Forward Current Sensor—Absolute Maximum Ratings Supply Voltage Input Voltage (all inputs Notes: (1) Stresses beyond those linked under “absolute maximum rating” may cause permanent damage to device. ...

Page 3

... Reflective Color Sensor Assembly OPB780Z LED Electro-Optical Characteristics of LED SYMBOL PARAMETER (1) I Luminous Intensity V V Forward Voltage F I Reverse Current R Sensor Recommended Operating Conditions SYMBOL PARAMETER V Supply Voltage DD V High-Level Input Voltage IH V Low-Level Input Voltage IL Operating Free-Air Temperature T A Range ...

Page 4

... OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (972) 323-2200 or (800) 341-4747 OPB780Z Sensor - Curves Spectral Response Photodiode Spectral Responsivity 1.0 No rmalized to 0.9 Clear @ 680 nm 0.8 0.7 0.6 0.5 0.4 0.3 0.2 ...

Page 5

... Reflective Color Sensor Assembly OPB780Z OPB780Z Sensor & LED - Typical Electro-Optical Characteristics Curves Sensor Radiation Diagram 0° 10° 20° 25° A 1.0 0.9 0.8 0.7 0.5 0.3 0.1 0.2 0.4 LED Spectrum Spectrum 1 0.8 0.6 0.4 0.2 0.0 350 450 550 Wavelength λ ...

Page 6

... Reflective Color Sensor Assembly OPB780Z OPB780Z LED - Typical Electro-Optical Characteristics Curves Forward Voltage vs Forward Current 1000 100 10 1 2.5 3.0 3.5 Forward Voltage V Duty Ratio vs Allowable Forward Current 1000 100 10 1 Duty Ratio (%) Ambient Temperature vs Relative Luminosity 10.0 1.0 0.1 -40 -20 ...

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