SINGLE CHANNEL IL74
DUAL CHANNEL ILD74
QUAD CHANNEL ILQ74
Phototransistor Optocoupler
FEATURES
Dimensions in inches (mm)
2
• 7400 Series T L Compatible
• Transfer Ratio, 35% Typical
• Coupling Capacitance, 0.5 pF
• Single, Dual, & Quad Channel
• Industry Standard DIP Package
• Underwriters Lab File #E52744
Single Channel
pin one ID
2
1
6
3
Anode
Cathode
NC
6
5
4
Base
1
2
3
.248 (6.30)
.256 (6.50)
Collector
Emitter
4
5
VE
D
•
VDE Approvals #0884
.335 (8.50)
.343 (8.70)
(Optional with Option 1, Add -X001 Suffix)
.300 (7.62)
typ.
.048 (0.45)
.022 (0.55)
.039
(1.00)
Min.
DESCRIPTION
The IL74 is an optically coupled pair with a
Gallium Arsenide infrared LED and a silicon
NPN phototransistor. Signal information,
including a DC level, can be transmitted by the
device while maintaining a high degree of
electrical isolation between input and output.
The IL74 is especially designed for driving
medium-speed logic, where it may be used to
eliminate troublesome ground loop and noise
problems. Also it can be used to replace relays
and transformers in many digital interface
applications, as well as analog applications
such as CRT modulation.
.130 (3.30)
.150 (3.81)
18°
4°
.114 (2.90)
.130 (3.0)
typ.
.031 (0.80) min.
3°–9°
.010 (.25)
typ.
.300–.347
.031 (0.80)
.035 (0.90)
.018 (0.45)
.022 (0.55)
.100 (2.54) typ.
(7.62–8.81)
Dual Channel
pin one ID
1
4
5
3
6
2
7
Anode
1
8
Emitter
.255 (6.48)
.268 (6.81)
Cathode
Cathode
Anode
2
3
4
7
6
5
Collector
Collector
Emitter
8
The ILD74 has two isolated channels in a sin-
gle DIP package; the ILQ74 has four isolated
channels per package.
.379 (9.63)
.390 (9.91)
.030 (0.76)
.045 (1.14)
.300 (7.62)
typ.
.031 (0.79)
4° typ.
.130 (3.30)
.150 (3.81)
.230(5.84)
.250(6.35)
.050 (1.27)
10°
.110 (2.79)
.130 (3.30)
.020 (.51 )
.035 (.89 )
3°–9°
.008 (.20)
.012 (.30)
.018 (.46)
.022 (.56)
.100 (2.54) typ.
Quad Channel
Anode
1
2
3
4
5
6
16 Emitter
pin one ID
Cathode
Cathode
Anode
15 Collector
14 Collector
13 Emitter
8
7
6
5
4
3
2
1
.255 (6.48)
.265 (6.81)
Anode
12 Emitter
9
10 11 12 13 14 15 16
Cathode
Cathode
Anode
11 Collector
Collector
Emitter
7
10
9
.779 (19.77 )
.790 (20.07)
8
.300 (7.62)
typ.
.030 (.76)
.045 (1.14)
.031(.79)
.130 (3.30)
.150 (3.81)
.110 (2.79)
.130 (3.30)
.230 (5.84)
.250 (6.35)
10°
typ.
4°
.020(.51)
.035 (.89)
3°–9°
.018 (.46)
.022 (.56)
.008 (.20)
.012 (.30)
.100 (2.54)typ.
.050 (1.27)
2001 Infineon Technologies Corp. • Optoelectronics Division • San Jose, CA
www.infineon.com/opto • 1-888-Infineon (1-888-463-4636)
2–100
March 1, 2000-00