Optical Comparator Array
OPR5011
Features:
•
•
•
•
•
Precise active area location
Surface mountable
TTL compatible output
Wide supply voltage range
Wide operating temperature range
Description:
Each
OPR5011
device is a hybrid sensor array that consists of three channels of the OPTEK OPC8332 differential
optical comparator (‘TRI-DOC”) IC. The single chip construction ensures very tight dimensional tolerances
between active areas.
Specifically designed for high-speed/high-resolution encoder applications, the open collector output switches
based on the comparison of the input photodiode’s light current levels. Logarithmic amplification of the input
signals facilitates operation over a wide range of light levels.
The surface-mountable opaque polyimide package shields the photodiodes from stray light and can withstand
multiple exposures to the most demanding soldering conditions, while the gold-plated wraparound contacts
provide exceptional storage and wetting characteristics.
Applications:
•
•
•
High-speed applications
High-resolution applications
Applications requiring a wide range of
light levels
Sensor
Differential Optical
OPR5011
Comparator
Part
Number
Ordering Information
Optical
# of
Icc (mA) Hysteresis (%)
Elements Typ / Max
Typical
3
9 / 20
40.00
Optical
Offset (%)
Min / Max
-40/+40
NOTE: SEE PAGE 2 FOR APPLICATION CIRCUIT.
DIMENSIONS ARE IN:
[MILLIMETERS]
INCHES
Pin # Description Pin # Description Pin # Description Pin # Description
1
2
3
4
B - Output
B - Vcc
A + Trim
A -Trim
5
6
7
8
N.C.
A - Output
A - Vcc
Common
9
10
11
12
Z + Trim
Z -Trim
Z - Output
Z - Vcc
13
14
B + Trim
B -Trim
RoHS
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue A 01/07
Page 1 of 3
OPTEK Technology Inc. —
1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747
FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Optical Comparator Array
OPR5011
Application Circuit - OPR5011
Notes:
(1) The 74L2)4 is recommended as a means of isolating the “DOC” comparator circuitry from transients induced by inductive and
capacitive loads.
(2) It is recommended that a decoupling capacitor be placed as close as possible to the device.
Block Diagram - OPC8332
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue A 01/07
Page 2 of 3
OPTEK Technology Inc. —
1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747
FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Optical Comparator Array
OPR5011
Absolute Maximum Ratings
(T
A
= 25° C unless otherwise noted)
Storage and Operating Temperature
Supply Voltage
Output Voltage
Output Current
Power Dissipation
Solder reflow time within 5°C of peak temperature is 20 to 40 seconds
(1)
-40° C to +100° C
24 V
24 V
14 mA
500 mW
250° C
Electrical Characteristics
(T
A
= 25° C unless otherwise noted)
SYMBOL
I
CC
V
OL
I
OH
PARAMETER
Supply Current
Low Level Output Voltage
(2)
High Level Output Current
(3)
MIN
-
-
-
-
-40
-
-
-
TYP
9
0.3
0.1
40
10
1
1
300
MAX
20
0.4
1
-
+40
-
-
-
UNITS
mA
V
µA
%
%
MHz
µs
ns
V
CC
= 5 V
TEST CONDITIONS
V
CC
= 24 V
I
OL
= 14 mA, V
CC
= 4.5 V
V
CC
= V
O
= 20 V
V
CC
= 5 V, I
OL
= 1 mA
V
CC
= 5 V, I
OL
= 1 mA
OPT-HYS Optical Hysteresis
(4)(7)
OPT-OFF Optical Offset
(4)(7)
f
max
t
lh
t
hl
Notes:
(1)
(2)
(3)
(4)
(5)
(6)
(7)
Frequency Response
(5)
Output Rise Time
(6)
Output Fall Time
(6)
Solder time less than 5 seconds at temperature extreme.
Pin (+) = 100.0 nW and Pin (-) = 1.0 µW .
Pin (+) = 1.0 µW and Pin (-) = 100.0 nW.
Pin (-) is held at 1.0 µW while Pin (+) is ramped from 0.5 µW to 1.5 µW and back to 0.5 µW.
Pin (+) is modulated from 1.0 µW to 2.0 µW. Pin (-) is modulated from 1.0 µW to 2.0 µW with phase shifted 180° with respect to
Pin (+). Use 100 kΩ trimpot to set the output signal to 50% duty cycle for maximum operating frequency.
Measured between 10% and 90% points.
Optical Hysteresis and Optical Offset are found by placing 1.0 µW of light on the inverting photodiode and ramping the light
intensity of the non-inverting input from 0.5 µW up to 1.5 µW and back down. This will produce two trigger points – an upper trigger
point and lower trigger point. These points are used to calculate the optical hysteresis and offset.
These are defined as:
% Optical Hysteresis = 100 x (P rise - P fall)
P in (-)
% Optical Offset = 100 x (P average - P (-))
P in (-)
Where:
P in (-)
P rise
P fall
P average
= Light level incident upon the “-” photodiode on the IC chip (Pin) (-) = 1.0 µW).
= Value of light power level incident upon the “+” photodiode that his required to switch the digital output when the
light level is an increasing level (rising edge).
= Value of light power level incident upon the “+” photodiode that is required to switch the digital output when the light
level is decreasing level (falling edge).
= (P rise + P fall)
2
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPTEK Technology Inc. —
1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747
FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Issue A 01/07
Page 3 of 3
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