OPTEK OPR5011

Product Bulletin OPR5011
September 2001
Optical Comparator Array
Type OPR5011
Features
Absolute Maximum Ratings (TA = 25o C unless otherwise noted)
• Precise active area location
• Surface mountable
• TTL compatible output
• Wide supply voltage range
• Wide operating temperature range
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +100°C
Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +100°C
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 V
Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 V
Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . `14 mA
Power Dissipation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 mW
Soldering Temperature (Vapor Phase Reflow for 30 seconds) . . . . . . . . . . . . . 235°C
Description
The OPR5011 is a hybrid sensor array
consisting 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
input photodiode’s light current levels.
Logarithmic amplification of the input
signals makes possible operation over a
wide range of light levels.
Replaces
OPR5003B
OPR5010
OPC8332 Block Diagram
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.
Optek Technology, Inc.
1215 W. Crosby Road
Carrollton, Texas 75006
TBD
(972) 323-2200
Fax (972) 323-2396
Type OPR5011
Electrical Characteristics (TA = 25o C unless otherwise noted)
SYMBOL
PARAMETER
ICC
Supply Current
VOL
IOH
MIN
TYP
MAX UNITS
TEST CONDITIONS
NOTES
9
20
mA
Low Level Output Voltage
0.3
0.4
V
I OL = 14 mA, VCC = 4.5 V
2
High Level Output Current
0.1
1.0
µA
VCC = VO = 20.0 V
3
OPT-HYS
Optical Hysteresis
40.0
%
VCC = 5.0 V, IOL = 1.0 mA
4, 7
OPT-OFF
Optical Offset
%
VCC = 5.0 V, IOL = 1.0 mA
4, 7
f max
-40
10
+40
Frequency Response
1.0
MHz
tlh
Output Rise Time
1.0
µs
thl
Output Fall Time
300
ns
VCC = 24 V
VCC = 5.0 V
5
6
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 180°with respect to Pin (+). Use 100 kΩ
trimpot to set the output signal to 50% duty cycle for maximum operating frequency.
6. Measured between 10% and 90% ponts.
7. Optical Hysteresis and Optical Offset are found by placi ng 1.0 µW of light on the inverting photodiode and ramping the light intensity of the
noninverting input from .5µW 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 (-) = Light level incident upon the “-”photodiode on the IC 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).
P average = (P rise + P fall )
2
Application Circuit
NOTES:
1. The 74LS04 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 de vice.
Optek re serves the right to make changes at any time in order to improve design and to supply the best product possi ble.
Optek Technology, Inc.
1215 W. Crosby Road
Carrollton, Texas 75006
(972)323-2200
Fax (972)323-2396
TBD