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Digital Isolator, Enhanced
System-Level ESD Reliability
Data Sheet
FEATURES
Enhanced system-level ESD performance per IEC 61000-4-x
High data rate: dc to 100 Mbps (NRZ)
Compatible with 3.3 V and 5.0 V operation/level translation
105°C maximum operating temperature
Low power operation
5 V operation
2.0 mA maximum @ 1 Mbps
ADuM3100
APPLICATIONS
Digital fieldbus isolation
Opto-isolator replacement
Computer-peripheral interface
Microprocessor system interface
General instrumentation and data acquisition
FUNCTIONAL BLOCK DIAGRAM
5.6 mA maximum @ 25 Mbps
V DD1 1
8 V DD2
18 mA maximum @ 100 Mbps
3.3 V operation
1.1 mA maximum @ 1 Mbps
VI
(DATA IN)
2
E
N
C
O
D
D
E
C
O
D
7 GND 2
4.2 mA maximum @ 25 Mbps
8.3 mA maximum @ 50 Mbps
V DD1 3
E
E
6 VO
(DATA OUT)
RoHS-compliant, 8-lead SOIC
High common-mode transient immunity: >25 kV/μs
GND 1 4
UPDATE
WATCHDOG
5 GND 2
Safety and regulatory approvals
UL recognized: 2500 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice #5A
VDE Certificate of Conformity
DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12
V IORM = 560 V peak
GENERAL DESCRIPTION
The ADuM3100 1 is a digital isolator based on the Analog
Devices, Inc., i Coupler? technology. Combining high speed
CMOS and monolithic transformer technology, this isolation
component provides outstanding performance characteristics
superior to alternatives, such as optocoupler devices.
Configured as a pin-compatible replacement for existing high
speed optocouplers, the ADuM3100 supports data rates as high
as 25 Mbps and 100 Mbps.
The ADuM3100 operates with a voltage supply ranging from
3.0 V to 5.5 V, boasts a propagation delay of <18 ns and an edge
asymmetry of <2 ns, and is compatible with temperatures up to
105°C. It operates at very low power, less than 2.0 mA of quiescent
ADuM3100
NOTES
1. FOR PRINCIPLES OF OPERATION, SEE METHOD OF OPERATION,
DC CORRECTNESS, AND MAGNETIC FIELD IMMUNITY SECTION.
Figure 1.
The ADuM3100 is offered in two grades. The ADuM3100AR
and ADuM3100BR can operate up to a maximum temperature
of 105°C and support data rates up to 25 Mbps and 100 Mbps,
respectively.
In comparison to the ADuM1100 digital isolator, the ADuM3100
contains various circuit and layout changes to provide increased
capability relative to system-level IEC 61000-4-x testing (ESD/
burst/surge). The precise capability in these tests for either the
ADuM1100 or ADuM3100 is strongly determined by the design
and layout of the user’s board or module. For more information,
see the AN-793 Application Note , ESD/Latch-Up Considerations
with iCoupler? Isolation Products.
current (sum of both sides), and a dynamic current of less than
160 μA per Mbps of data rate. Unlike other optocoupler alterna-
tives, the ADuM3100 provides dc correctness with a patented
refresh feature that continuously updates the output signal.
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
1
Protected by U.S. Patents 5,952,849; 6,525,566; 6,922,080; 6,903,578;
6,873,065; 7,075,329 and other pending patents.
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ?2005–2012 Analog Devices, Inc. All rights reserved.
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