Fea tures
Surface mountable
TTL compatible output
Wide supply voltage range
De scrip tion
The OPR5009 is a hybrid sensor array
consisting of three channels of the Optek
OPC8031 Differential Optical
Comparator, ("DOC-2") IC. Specifically
designed for high speed/high resolution
encoder applications, the open collector
output switches based on the
comparison of input photodiode's light
current levels. Logarithmic amplification
of the input signals makes possible
operation over a wide range of light
levels.
The packages are surface mountable
with two alignment holes, and made from
a custom opaque polyimide which
shields the active devices from stray
light. The high temperature laminate can
withstand multiple exposures to the most
demanding soldering conditions. Wrap
around contacts are gold plated for
exceptional storage and wetting
characteristics.
Ab so lute Maxi mum Rat ings (T
A
= 25
o
C un less oth er wise noted)
Stor age Tem pera ture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55
o
C to +125
o
C
Op er at ing tem pera ture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20
o
C to +80
o
C
Sup ply Volt age . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 V
Out put Volt age. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 V
Out put Cur rent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 mA
Power Dis si pa tion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 mW
Sol der ing Tem pera ture (Va por Phase Re flow for 30 sec.) . . . . . . . . . . . . . . . . 235
o
C
Prod uct Bul le tin OPR5009
PRE LIMI NARY
Janu ary 1998
Optical Comparator Array
Type OPR5009
Op tek Tech nol ogy, Inc. 1215 W. Crosby Road Car roll ton, Texas 75006 (972) 323- 2200 Fax (972) 323- 2396
OPC8031 Block Dia gram
9-24
DIMENSIONS ARE IN INCHES (MILLIMETERS)
Type OPR5009 PRELIMINARY
Notes:
1. Pin (+) = 1.2
W and Pin (-) = 0.8
W.
2. Pin (+) = 100.0 nW and Pin (-) = 1.0
W.
3. Pin (+) = 1.0
W and Pin (-) 100.0 nW.
4. Pin (-) held at 1.0
W while Pin (+) is ramped from 0.5
W to 1.5
W and back to 0.5
W.
5. Pin (+) modulated from 1.0
W to 2.0
W. Pin (-) modulated from 1.0
W to 2.0
W with phase shifted 180
o
with respect to Pin (+). Use 100
k
trimpot to set the output signal to 50% duty cycle for maximum operating frequency.
6. Measured between 10% and 90% points.
7. Optical Hysteresis and Optical Offset are found by placing 1.0
W of light on the inverting photodiode and ramping the light intensity of the
noninverting input from .5
W up to 1.5
W 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 de fined as:
% Optical Hysteresis = 100 x (P rise - P fall)
P in (-)
% Optical Offset
= 100 x (P average - P (-) )
P in (-)
Where:
P in (-) = Light level incident upon the "-" photodiode on the I.C. chip (Pin (-) = 1.0
W).
P rise = Value of light power level incident upon the "+" photodiode that is required to switch the digital output when the light level is an
increasing level (rising edge).
P fall = Value of light power level incident upon the "+" photodiode that is required to switch the digital output when the light level is a
decreasing level (falling edge).
P average = (P rise + P fall)
2
Elec tri cal Char ac ter is tics (T
A
= 25
o
C un less oth er wise noted)
SYM BOL
PA RAME TER
MIN TYP MAX UNITS
TEST CON DI TIONS
NOTES
I
CC
Supply Current
9
20
mA
V
CC
= 24 V
V
OL
Low Level Output Voltage
0.3
0.4
V
I
OL
= 14 mA, V
CC
= 4.5 V
2
I
OH
High Level Output Current
0.1
1.0
A
V
CC
= V
O
= 20.0 V
3
OPT-HYS Optical Hysteresis
2.0
15.0
40
%
V
CC
= 5.0 V, I
OL
= 1.0 mA
4, 7
OPT-OFF Optical Offset
-40
10
+40
%
V
CC
= 5.0 V, I
OL
= 1.0 mA
4, 7
fmax
Frequency Response
1.0
MHz
V
CC
= 5.0 V
5
tlh
Output Rise Time
1.0
s
6
thl
Output Fall Time
300
ns
Notes:
1. A capacitor of a value between .001 to .01
F connected as close as possible to the trim terminals is recommended if the device
appears to be susceptable to noise transients. These capacitors will reduce f
max
. It is left to the user to determine the best
value for the application.
2. The 74LS04 is recommended as a means of isolating the "DOC" comparator circuitry from transients induced by inductive and
capacitive loads.
3. It is re com me ded that a de cou pling ca paci tor be placed as close as pos si ble to the de vice.
Ap pli ca tion Cir cuit
Op tek re serves the right to make changes at any time in or der to im prove de sign and to sup ply the best prod uct pos si ble.
Op tek Tech nol ogy, Inc. 1215 W. Crosby Road Car roll ton, Texas 75006 (972)323- 2200 Fax (972)323- 2396
9-25
OPR5009
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