Burr Brown ISO103B, ISO103 Datasheet

Duty Cycle

Modulator

Duty Cycle

Demodulator

Rectifiers

Filters

Oscillator

Driver

Sense

V

OUT

Com 2
–V

CC2

Sync*

Enable

+V

CC2

Gnd 2

+V

CC1

–V

CC1

Gnd 1

Com 1

V

IN

Ps Gnd

–V

C

+V

C

Sync

*Ground if not used

®

ISO103

Low-Cost, Internally Powered

ISOLATION AMPLIFIER

ISO103

FEA TURES

● SIGNAL AND POWER IN ONE

DOUBLE-WIDE (0.6") SIDE-BRAZED
PACKAGE

● 5600Vpk TEST VOLTAGE

● 1500Vrms CONTINUOUS AC BARRIER

RATING

APPLICATIONS

● MULTICHANNEL ISOLATED DATA

ACQUISITION

● ISOLATED 4-20mA LOOP RECEIVER AND

POWER

● POWER SUPPLY AND MOTOR CONTROL

● GROUND LOOP ELIMINATION

● WIDE INPUT SIGNAL RANGE:

–10V to +10V

● WIDE BANDWIDTH:

20kHz Small Signal, 20kHz Full Power

● BUILT-IN ISOLATED POWER:

±10V to ±18V Input, ±50mA Output

● MULTICHANNEL SYNCHRONIZATION

CAPABILITY (TTL)

● BOARD AREA ONLY 0.72in.2 (4.6cm2)

DESCRIPTION

The ISO103 isolation amplifier provides both signal
and power across an isolation barrier. The ceramic
non-hermetic hybrid package with side-brazed pins
contains a transformer-coupled DC/DC converter and
a capacitor-coupled signal channel.

Extra power is available on the isolated input side for
external input conditioning circuitry. 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 con-

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©

1989 Burr-Brown Corporation PDS-1004E Printed in U.S.A. August, 1999

Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]

trol is used to turn off transformer drive while keeping
the signal channel demodulator 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
ISO103 easy to use, as well as providing for compact
PC board layouts.

SPECIFICATIONS

ELECTRICAL

At TA = +25°C and V

PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
ISOLATION

Rated Continuous Voltage

AC, 60Hz T

DC T
Test Breakdown, 100% AC, 60Hz 10s 5657 ✻ Vpk
Isolation-Mode Rejection 1500Vrms, 60Hz 130 ✻ dB

Barrier Impedance 10
Leakage Current 240Vrms, 60Hz 1 2 ✻✻µA

GAIN

Nominal 1 ✻ V/V
Initial Error ±0.12 ±0.3 ±0.08 ±0.15 % FSR
Gain vs Temperature ±60 ±100 ±20 ±50 ppm/°C
Nonlinearity V

INPUT OFFSET VOLTAGE

Initial Offset ±20 ±60 ✻✻mV

vs Temperature ±300 ±500 ✻✻µV/°C

vs Power Supplies V

vs Output Supply Load I

SIGNAL INPUT

Voltage Range Output Voltage in Range ±10 ±15 ✻✻ V
Resistance 200 ✻ kΩ

SIGNAL OUTPUT

Voltage Range ±10 ±12.5 ✻✻ V
Current Drive ±5 ±15 ✻✻ mA
Ripple Voltage, 800kHz Carrier 25 ✻ mVp-p

Capacitive Load Drive 1000 ✻ pF
Voltage Noise 4 ✻ µV/√Hz

FREQUENCY RESPONSE

Small Signal Bandwidth 20 ✻ kHz
Slew Rate 1.5 ✻ V/µs
Settling Time 0.1%, –10/10V 75 ✻ µs

POWER SUPPLIES

Rated Voltage, V
Voltage Range ±10 ±18 ✻✻V
Input Current I

Ripple Current No Filter 60 ✻ mAp-p

Rated Output Voltage Load = 15mA ±14.25 ±15 ±15.75 ✻✻✻V
Output 50mA Balanced Load 10 ✻✻V

Load Regulation Balanced Load 0.3 ✻ %/mA
Line Regulation 1.12 ✻ V/V
Output Voltage vs Temperature 2.5 ✻ mV/°C
Voltage Balance Error, ±V
Voltage Ripple (800kHz) No External Capacitors 50 ✻ mVp-p

Output Capacitive Load 1 ✻ µF
Sync Frequency Sync-Pin Grounded

TEMPERATURE RANGE

Specification –25 +85 ✻✻°C
Operating –25 +85 ✻✻°C
Storage –25 +125 ✻✻°C

✻ Specifications same as ISO103.
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%.

= ±15V, ±15mA output current unless otherwise noted.

CC2

(1)

to T

MIN

MAX

to T

MIN

MAX

2121VDC 160 ✻ dB

= –10V to 10V ±0.026 ±0.075 ±0.018 ±0.050 % FSR

O

V

= –5V to 5V ±0.009 ✻ ±0.025 %FSR

O

= ±10V to ±18V 0.9 ✻ mV/V

CC2

= 0 to ±50mA ±0.3 ✻ mV/mA

O

400Ω/4.7nF (See Figure 4) 5 ✻ mVp-p

CC2

= ±15mA +90/–4.5 ✻ mA

O

I

= 0mA +60/–4.5 ✻ mA

O

C

= 1µF3 ✻ mAp-p

IN

100mA Single-Ended Loads 10 ✻✻V

CC1

C

= 1µF5 ✻ mVp-p

EXT

ISO103 ISO103B

1500 ✻ Vrms
2121 ✻ VDC

12

|| 9 ✻ Ω || pF

±15 ✻ V

0.05 ✻ %

(2)

1.6 ✻ MHz

®

ISO103

2

ABSOLUTE MAXIMUM RATINGS

Supply Without Damage .................................................................... ±18V

V

, Sense Voltage............................................................................. ±50V

IN

Com 1 to Gnd 1 or Com 2 to Gnd 2 ..............................................±200mV

Enable, Sync........................................................................... 0V to +V

Continuous Isolation Voltage ..................................................... 1500Vrms

V

, dv/dt ..................................................................................... 20kV/µs

ISO

Junction Temperature ...................................................................... 150°C

Storage Temperature...................................................... –25°C to +125°C

Lead Temperature,10s .................................................................... 300°C

Output Short to Gnd 2 Duration ............................................... Continuous

±V

to Gnd 1 Duration .......................................................... Continuous

CC1

CC2

ELECTROSTATIC
DISCHARGE SENSITIVITY

Any 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
published specifications.

PIN CONFIGURATION

1

+V

C

+V

2

CC1

3

–V

CC1

–V

4

CC1

Com 2

9

V

10

OUT

Sense

11
12

Gnd 2

*Operation requires this pin be grounded or driven with TTL levels.

24

Ps Gnd
23 Gnd 1

22 V

IN

21 Com 1

16

–V

CC2

15

Sync*

+V

14

CC2

Enable

13

PACKAGE/ORDERING INFORMATION

PACKAGE SPECIFIED
DRAWING TEMPERATURE PACKAGE ORDERING TRANSPORT

PRODUCT PACKAGE NUMBER

ISO103 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 “ISO103/2K5” will get a single 2500­piece 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.

(1)

RANGE MARKING NUMBER

(2)

MEDIA

®

3

ISO103