without adversely affecting the
parametric performance.
Guaranteed operation at low input
currents and the high current
transfer ratio (CTR) reduce the
magnitude and effects of CTR
degradation.
capability make this device
extremely useful in applications
where a high fanout is required.
Compatibility with high voltage
CMOS logic systems is guaranteed
by the 18 V VCC and VO specifica-
tions and by testing output high
leakage (IOH) at 18 V.
These dual channel optocouplers
are available in an 8-Pin DIP and
in an industry standard SO-8
package. The following is a cross
reference table listing the 8-Pin
DIP part number and the
The outstanding high temperature
performance of this split
Darlington type output amplifier
results from the inclusion of an
integrated emitter-base bypass
resistor which shunts photodiode
and first stage leakage currents to
ground.
electrically equivalent SOIC-8 part
number.
The HCPL-2730/0730 are speci-
fied at an input current of 1.6 mA
and have a 7 V VCC and VO rating.
The 300% minimum CTR allows
TTL to TTL interfacing at this
input current.
8-Pin DIP
SO-8
HCPL-2730 HCPL-0730
HCPL-2731 HCPL-0731
The HCPL-2731/0731 have a
400% minimum CTR at an input
current of only 0.5 mA making it
ideal for use in low input current
applications such as MOS, CMOS,
and low power logic interfacing or
RS232C data transmission
The SO-8 does not require
Important specifications such as
CTR, leakage current, and output
saturation voltage are guaranteed
over the 0°C to 70°C temperature
range to allow trouble-free system
operation. Selection for lower
input currents down to 250 µA is
available upon request.
“through holes” in a PCB. This
package occupies approximately
one-third the footprint area of the
standard dual-in-line package.
The lead profile is designed to be
compatible with standard surface
mount processes.
systems. In addition, the high
CTR and high output current
Selection Guide
Widebody
Package
8-Pin DIP
Hermetic
(300 Mil)
Small Outline SO-8 (400 mil)
Single Dual
Single and
Dual
Minimum
Input ON
Current
(IF)
Absolute
Maxi-
mum
Dual
Single
Channel
Package
Channel Channel Channel
Package Package Package
HCPL-
Single
Channel
Package
Channel
Packages
HCPL-
Minimum
CTR
HCPL-
0701[1]
0700[1]
070A[1]
HCPL-
VCC
6N139[1]
6N138[1]
2731
0731
HCNW139[1]
HCNW138[1]
0.5 mA
1.6 mA
40 µA
400%
300%
800%
300%
18 V
7 V
2730
0730
HCPL-4701[1]
4731[1]
073A[1]
18 V
20 V
0.5 mA
5701[1]
5700[1]
5731[1]
5730[1]
Note:
1. Technical data are on separate HP publications.
1-109
HP [ HEWLETT-PACKARD ]
