ADUM3100 Datasheet, PDF (1/16 Pages) Analog Devices – Digital Isolator, Enhanced System-Level ESD Reliability

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
5.6 mA maximum @ 25 Mbps
18 mA maximum @ 100 Mbps
3.3 V operation
1.1 mA maximum @ 1 Mbps
4.2 mA maximum @ 25 Mbps
8.3 mA maximum @ 50 Mbps
8-lead SOIC, Pb-free package
High common-mode transient immunity: >25 kV/μs
Safety and regulatory information
UL recognized: 2500 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice #5A
VDE Certificate of Conformity
DIN EN 60747-5-2 (VDE 0884 Part 2): 2003–01
DIN EN 60950 (VDE 0805): 2001–12; EN 60950: 2000
VIORM = 560 VPEAK
GENERAL DESCRIPTION
The ADuM3100¹ is a digital isolator based on Analog Devices
iCoupler® 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 current (sum of both sides), and a dynamic
current of less than 160 μA per Mbps of data rate. Unlike
other optocoupler alternatives, the ADuM3100 provides dc
correctness with a patented refresh feature that continuously
updates the output signal.
Digital Isolator, Enhanced
System-Level ESD Reliability
ADuM3100
APPLICATIONS
Digital fieldbus isolation
Opto-isolator replacement
Computer-peripheral interface
Microprocessor system interface
General instrumentation and data acquisition
FUNCTIONAL BLOCK DIAGRAM
V_DD1 1
V_{I 2}
(DATA IN)
V_DD1 3
E
D
N
E
C
C
O
O
D
D
E
E
8 V_DD2
7 GND₂
6 ^VO
(DATA OUT)
UPDATE
WATCHDOG
GND₁ 4
ADuM3100
5 GND₂
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-× 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 Application Note AN-793,
ESD/Latch-Up Considerations with iCoupler Isolation
Products.
1 _{Protected by U.S. Patents 5,952,849; 6,525,566; 6,922,080; 6,903,578;}
6,873,065; and other pending patents.
Rev. A
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