Datasheet OPR5003B, OPR5001B, OPR5002B Datasheet (OPTEK)

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Prod uct Bul le tin OPR5001B Janu ary 1998
Optical Comparator Arrays
Type OPR5001B, OPR5002B, OPR5003B
Fea tures
Surface mountable
Multiple channels available
TTL compatible output
Wide supply voltage range
De scrip tion
The OPR5001B, OPR5002B and OPR5003B are hybrid sensor arrays consisting of one, two or three channels of the Optek OPC8032 Differential Optical Comparator, (“DOC”) IC. Specifically designed for 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 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 (TA = 25o C un less oth er wise noted)
Stor age Tem pera ture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55o C to +125o C
Op er at ing tem pera ture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20o C to +80o 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.) . . . . . . . . . . . . . . . . 235o C
Replaces OPR5001A Series.
OPC8032 Block Dia gram
Op tek Tech nol ogy, Inc. 1215 W. Crosby Road Car roll ton, Texas 75006 (972) 323- 2200 Fax (972) 323- 2396
9-19
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Type OPR5001B, OPR5002B, OPR5003B
Tol er ance = ± .005(± .13) un less oth er wise noted.
OPR5001B
OPR5002B
OPR5003B
Op tek Tech nol ogy, Inc. 1215 W. Crosby Road Car roll ton, Texas 75006 (972) 323- 2200 Fax (972) 323- 2396
9-20
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Type OPR5001B, OPR5002B, OPR5003B
Elec tri cal Char ac ter is tics (TA = 25o C un less oth er wise noted)
SYM BOL PA RAME TER MIN TYP MAX UNITS TEST CON DI TIONS NOTES
I
CC
V
OL
I
OH
OPT-HYS Optical Hysteresis 2.0 15.0 40 % VCC = 5.0 V, I OPT-OFF Optical Offset -40 10 +40 % VCC = 5.0 V, IOL = 1.0 mA 4, 7
fmax Frequency Response 300 kHz VCC = 5.0 V 5
tlh Output Rise Time 2.0 thl Output Fall Time 500 ns
Notes:
1. Pin (+) = 1.2 µW and Pin (-) = 0.8 µW.
2. Pin (+) = 100.0 nW and Pin (-) = 1.0 µW.
3. Pin (+) = 1.0 µW and Pin (-) 100.0 nW.
4. Pin (-) held at 1.0 µW while Pin (+) is ramped from 0.5 µW to 1.5 µW and back to 0.5 µW.
5. Pin (+) modulated from 1.0 µW to 2.0 µW. Pin (-) modulated from 1.0 µW to 2.0 µW with phase shifted 180o 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 µW of light on the inverting photodiode and ramping the light intensity of the noninverting input from .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 de fined as:
% Optical Hysteresis = 100 x (P rise - P fall)
% Optical Offset = 100 x (P average - P (-) )
Where: P in (-) = Light level incident upon the “-” photodiode on the I.C. chip (Pin (-) = 1.0 µW). 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).
Supply Current 5001 3 7 mA VCC = 24 V 1
5002 6 14 mA
5003 9 20 mA Low Level Output Voltage 0.3 0.4 V IOL = 14 mA, VCC = 4.5 V 2 High Level Output Current 0.1 1.0
VCC = VO = 20.0 V 3
µA
= 1.0 mA 4, 7
OL
µs
P in (-)
P in (-)
P average = (P rise + P fall)
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Ap pli ca tion Cir cuit
OPR5001B
Notes:
1. A capacitor of a value between .001 to .01 µF 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
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 recommeded that a decoupling capacitor be placed as close as possible to the device.
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
9-21
. It is left to the user to determine the best
max
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Op tek Tech nol ogy, Inc. 1215 W. Crosby Road Car roll ton, Texas 75006 (972)323- 2200 Fax (972)323- 2396
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