© 1989 Burr-Brown Corporation
PDS-844E
Printed in U.S.A. August, 1999
ISO113
Low-Cost, High-Voltage, Internally Powered
OUTPUT ISOLATION AMPLIFIER
FEATURES
q
SELF-CONTAINED ISOLATED SIGNAL
AND OUTPUT POWER
q
SMALL PACKAGE SIZE: Double-Wide
(0.6") Sidebraze DIP
q
CONTINUOUS AC BARRIER RATING:
1500Vrms
q
WIDE BANDWIDTH: 20kHz Small Signal,
20kHz Full Power
q
BUILT-IN ISOLATED OUTPUT POWER:
±
10V to
±
18V Input,
±
50mA Output
q
MULTICHANNEL SYNCHRONIZATION
CAPABILITY
q
BOARD AREA ONLY 0.72in.
2
(4.6cm
2
)
APPLICATIONS
q
4mA TO 20mA V/I CONVERTERS
q
MOTOR AND VALVE CONTROLLERS
q
ISOLATED RECORDER OUTPUTS
q
MEDICAL INSTRUMENTATION OUTPUTS
q
GAS ANALYZERS
DESCRIPTION
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.
Duty Cycle Modulator
Duty Cycle Demodulator
Rectifiers, Filters
Oscillators, Driver
V
OUT
V
CC2
Sync*
Enable
+V
CC1
Ps Gnd
+V
CC2
V
CC1
Gnd 1
Com 1
V
IN
Sense
V
C
+V
C
Sync
*Ground if not used
Gnd 2
®
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ISO113
®
ISO113
2
SPECIFICATIONS
ELECTRICAL
At T
A
= +25
°
C and V
CC1
=
±
15V,
±
15mA output, current unless otherwise noted.
ISO113
ISO113B
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
ISOLATION
Rated Continuous Voltage
AC, 60Hz
T
MIN
to T
MAX
1500
T
Vrms
DC
T
MIN
to T
MAX
2121
T
VDC
Test Breakdown, 100% AC, 60Hz
10s
5657
T
Vpk
Isolation-Mode Rejection
1500Vrms, 60Hz
130
T
dB
2121VDC
160
T
dB
Barrier Impedance
10
12
|| 9
T
|| pF
Leakage Current
240Vrms, 60Hz
1
2
T
T
µ
A
GAIN
Nominal
1
T
V/V
Initial Error
±
0.3
±
0.5
T
T
%FSR
Gain vs Temperature
±
60
±
100
±
20
±
50
ppm/
°
C
Nonlinearity
V
O
= 10V to 10V
±
0.05
±
0.1
±
0.03
±
0.05
%FSR
V
O
= 5V to 5V
±
0.02
±
0.04
±
0.012
±
0.02
%FSR
INPUT OFFSET VOLTAGE
Initial Offset
±
20
±
60
T
T
mV
vs Temperature
±
300
±
500
±
100
±
250
µ
V/
°
C
vs Power Supplies
V
CC2
=
±
10 to
±
18V
0.9
T
mV/V
vs Output Supply Load
I
O
= 0 to
±
50mA
±
0.3
T
mV/mA
SIGNAL INPUT
Voltage Range
Output Voltage in Range
±
10
±
15
T
T
V
Resistance
200
T
k
SIGNAL OUTPUT
Voltage Range
±
10
±
12.5
T
T
V
Current Drive
±
5
±
15
T
T
mA
Ripple Voltage, 800kHz Carrier
25
T
mVp-p
400
/4.7nF (See Figure 4)
5
T
mVp-p
Capacitive Load Drive
1000
T
pF
Voltage Noise
4
T
µ
V/
Hz
FREQUENCY RESPONSE
Small Signal Bandwidth
20
T
kHz
Slew Rate
1.5
T
V/
µ
s
Settling Time
0.1%, 10/10V
75
T
µ
s
POWER SUPPLIES
Rated Voltage, V
CC1
±
15
T
V
Voltage Range
±
10
±
18
T
T
V
Input Current
I
O
=
±
15mA
+90/4.5
T
mA
I
O
= 0mA
+60/4.5
T
mA
Ripple Current
No Filter
60
T
mAp-p
C
IN
= 1
µ
F
3
T
mAp-p
Rated Output Voltage
Load = 15mA
±
14.25
±
15
±
15.75
T
T
T
V
Output
50mA Balanced Load
10
T
V
100mA Single-Ended Load
10
T
V
Load Regulation
Balanced Load
0.3
T
%/mA
Line Regulation
1.12
T
V/V
Output Voltage vs Temperature
2.5
T
mV/
°
C
Voltage Balance,
±
V
CC2
0.05
T
%
Voltage Ripple (800kHz)
No External Capacitors
50
T
mVp-p
C
EXT
= 1
µ
F
5
T
mVp-p
Output Capacitive Load
1
T
µ
F
Sync Frequency
Sync-Pin Grounded
(2)
1.6
T
MHz
TEMPERATURE RANGE
Specification
25
+85
T
T
°
C
Operating
25
+85
T
T
°
C
Storage
25
+125
T
T
°
C
T
Specifications same as ISO113.
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
3
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
Supply Without Damage ....................................................................
±
18V
V
IN
, Sense Voltage .............................................................................
±
50V
Com
1
to Gnd
1 ................................................................................................................
±
200mV
Enable, Sync ......................................................................... Gnd to +V
CC1
Continuous Isolation Voltage ..................................................... 1500Vrms
V
ISO
, dv/dt ..................................................................................... 20kV/
µ
s
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
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.
NC
Gnd 1
V
Com 1
V
V
+V
+V
Enable
1
2
3
4
9
10
11
12
24
23
22
21
16
15
14
13
C
CC2
CC2
C
+V
Sync
V
Gnd 2
Sense
Ps Gnd
V
OUT
CC1
CC1
IN
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
SPECIFIED
DRAWING
TEMPERATURE
PACKAGE
ORDERING
TRANSPORT
PRODUCT
PACKAGE
NUMBER
(1)
RANGE
MARKING
NUMBER
(2)
MEDIA
ISO113
24-Pin DIP
231
25
°
C to +85
°
C
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.
PACKAGE/ORDERING INFORMATION
®
ISO113
4
TYPICAL PERFORMANCE CURVES
At T
A
= +25
°
C,V
CC1
=
±
15VDC,
±
15mA output, current unless otherwise noted.
RECOMMENDED RANGE OF ISOLATION VOLTAGE
100
1k
10k
100k
1M
10M
10k
2.1k
1k
100
10
1
Maximum Isolation Voltage (Vpk)
Barrier Voltage Rating
Non-Specified
Signal
Operation
2100V
at 75kHz
Operational
Region
Isolation Voltage Frequency (Hz)
IMR/LEAKAGE vs FREQUENCY
140
130
120
110
100
10
100
1k
10k
100k
10mA
1mA
100µA
10µA
1µA
100nA
Leakage at
1500Vrms
Leakage at
240Vrms
IMR
Isolation Voltage Frequency (Hz)
Isolation-Mode Rejection (dB)
Barrier Leakage Current (rms)
90
DISTORTION vs FREQUENCY
1k
Frequency (Hz)
10
100
10k
10
1
0.1
0.01
THD + N (%)
V
= 2Vp-p
O
V
= 20Vp-p
O
GAIN/PHASE vs FREQUENCY
1k
100
10k
100k
Small Signal Frequency (Hz)
3
0
3
9
12
15
6
Gain (dB)
0
45
90
135
180
Phase Shift (°)
Gain
Phase
20
10
0
10
20
Output Voltage (V)
Time (µs)
0
50
100
LARGE SIGNAL TRANSIENT RESPONSE
ISOLATED POWER SUPPLY
LOAD REGULATION AND EFFICIENCY
±V Supply Output Current (mA)
CC1
10
20
20
40
30
60
40
80
0
15
30
45
60
17
16
15
14
13
±V Output Voltage (V)
CC1
Output Voltage
Single-Ended Loads
Efficiency (%)
0
0
Output Voltage
Balanced Loads
Balanced Load Efficiency
®
ISO113
5
TYPICAL PERFORMANCE CURVES
(CONT)
At T
A
= +25
°
C,V
CC1
=
±
15VDC,
±
15mA output current, unless otherwise noted.
ISOLATED POWER SUPPLY LINE REGULATION
9
10
11
12
13
14
15
16
17
18
19
+V (V)
CC1
19
18
17
16
15
14
13
12
11
10
9
±V (V)
CC2
±15mA Load
1.12V/V
ISOLATION POWER SUPPLY VOLTAGE
vs TEMPERATURE
25
0
25
50
75
100
Temperature (°C)
2
1
0
1
2
V (%)
CC2
ISOLATED SUPPLY VOLTAGE AND V
vs SYNC FREQUENCY
OS
1
1.5
2
2.5
5
2.5
2.5
5
0
250
125
0
125
250
V (mA)
OS
V (mA)
CC2
Sync Frequency (MHz)
V
CC2
V
OS
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