The ISO113 output isolation amplifier provides both
signal and output power across an isolation barrier in
a small double-wide DIP package. The ceramic non-
hermetic hybrid package with side-brazed pins con-
tains a transformer-coupled DC/ DC converter and a
capacitor-coupled signal channel.
Extra power is available on the isolated output side for
driving external loads. The converter is protected from
shorts to ground with an internal current limit, and the
soft-start feature limits the initial currents from the
power source. Multiple-channel synchronization can
be accomplished by applying a TTL clock signal to
paralleled Sync pins. The Enable control is used to
turn off transformer drive while keeping the signal
channel modulator active. This feature provides a
convenient way to reduce quiescent current for low
power applications.
The wide barrier pin spacing and internal insulation
allow for the generous 1500Vrms continuous rating.
Reliability is assured by 100% barrier breakdown
testing that conforms to UL1244 test methods. Low
barrier capacitance minimizes AC leakage currents.
These specifications and built-in features make the
ISO113 easy to use, and provides for compact PC
board layout.
+V
C
Sense
V
OUT
Gnd 2
–V
C
+V
CC2
Oscillators, Driver
Rectifiers, Filters
Ps Gnd
–V
CC2
*Ground if not used
APPLICATIONS
q
q
q
q
q
4mA TO 20mA V/I CONVERTERS
MOTOR AND VALVE CONTROLLERS
ISOLATED RECORDER OUTPUTS
MEDICAL INSTRUMENTATION OUTPUTS
GAS ANALYZERS
+V
CC1
V
IN
–V
CC1
Com 1
Sync*
Enable
Gnd 1
Sync
Duty Cycle Modulator
Duty Cycle Demodulator
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111
NOTE: (1) Conforms to UL1244 test methods. 100% tested at 1500Vrms for 1 minute. (2) If using external synchronization with a TTL-level clock, frequency should
be between 1.2MHz and 2MHz with a duty-cycle greater than 25%.
®
ISO113
2
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
Supply Without Damage ....................................................................
±18V
V
IN
, Sense Voltage .............................................................................
Junction Temperature .................................................................... +150°C
Storage Temperature ...................................................... –25°C to +125°C
Lead Temperature,10s .................................................................. +300°C
Output Short to Gnd Duration .................................................. Continuous
±V
CC2
to Gnd 2 Duration .......................................................... Continuous
Enable
+V
CC1
Sync
–V
CC1
1
2
3
4
24
23
22
21
NC
Gnd 1
V
IN
Com 1
Gnd 2
V
OUT
Sense
Ps Gnd
9
10
11
12
16
15
14
13
–V
C
–V
CC2
+V
CC2
+V
C
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.
ESD damage can range from subtle performance degradation
to complete device failure. Precision integrated circuits may
be more susceptible to damage because very small parametric
changes could cause the device not to meet its published
specifications.
PACKAGE/ORDERING INFORMATION
PACKAGE
DRAWING
NUMBER
(1)
231
SPECIFIED
TEMPERATURE
RANGE
–25°C to +85°C
PACKAGE
MARKING
ORDERING
NUMBER
(2)
TRANSPORT
MEDIA
PRODUCT
ISO113
PACKAGE
24-Pin DIP
NOTES: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book. (2) Models with a slash (/) are
available only in Tape and Reel in the quantities indicated (e.g., /2K5 indicates 2500 devices per reel). Ordering 2500 pieces of “ISO113/2K5” will get a single 2500-
piece Tape and Reel. For detailed Tape and Reel mechanical information, refer to Appendix B of Burr-Brown IC Data Book.
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
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