ADUM3201_15 Datasheet, PDF (1/20 Pages) Analog Devices – Dual-Channel, Digital Isolators, Enhanced System-Level ESD Reliability

Data Sheet
Dual-Channel, Digital Isolators,
Enhanced System-Level ESD Reliability
ADuM3200/ADuM3201
FEATURES
Enhanced system-level ESD performance per IEC 61000-4-x
High temperature operation: 125°C
Narrow body, RoHS-compliant, 8-lead SOIC
Low power operation
5 V operation
1.7 mA per channel maximum @ 0 Mbps to 2 Mbps
3.7 mA per channel maximum @ 10 Mbps
7.0 mA per channel maximum @ 25 Mbps
3.3 V operation
1.5 mA per channel maximum @ 0 Mbps to 2 Mbps
2.5 mA per channel maximum @ 10 Mbps
5.2 mA per channel maximum @ 25 Mbps
Bidirectional communication
3.3 V/5 V level translation
High data rate: dc to 25 Mbps (NRZ)
Precise timing characteristics
3 ns maximum pulse width distortion
3 ns maximum channel-to-channel matching
High common-mode transient immunity: >25 kV/μs
Safety and regulatory approvals
UL recognition: 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
VIORM = 560 V peak
Qualified for automotive applications
APPLICATIONS
Size-critical multichannel isolation
SPI interface/data converter isolation
RS-232/RS-422/RS-485 transceiver isolation
Digital field bus isolation
Hybrid electric vehicles, battery monitor
GENERAL DESCRIPTION
The ADuM3200/ADuM3201¹ are dual-channel, digital isola-
tors based on the Analog Devices, Inc., iCoupler® technology.
Combining high speed CMOS and monolithic transformer
technology, these isolation components provide outstanding
performance characteristics superior to alternatives such as
optocoupler devices.
By avoiding the use of LEDs and photodiodes, iCoupler
devices remove the design difficulties commonly associated
with optocouplers. The typical optocoupler concerns regarding
uncertain current transfer ratios, nonlinear transfer functions,
and temperature and lifetime effects are eliminated with the
simple iCoupler digital interfaces and stable performance char-
acteristics. The need for external drivers and other discrete
components is eliminated with these iCoupler products. Further-
more, iCoupler devices consume one-tenth to one-sixth the
power of optocouplers at comparable signal data rates.
The ADuM3200/ADuM3201 isolators provide two independent
isolation channels in a variety of channel configurations and
data rates (see the Ordering Guide). They operate with 3.3 V
or 5 V supply voltages on either side, providing compatibility
with lower voltage systems as well as enabling voltage translation
functionality across the isolation barrier. The ADuM3200W
and ADuM3201W are automotive grade versions qualified
for 125°C operation.
In comparison to the ADuM120x isolators, the ADuM3200/
ADuM3201 isolators contain various circuit and layout changes
to provide increased capability relative to system-level IEC
61000-4-x testing (ESD, burst, and surge). The precise capability
in these tests for either the ADuM120x or ADuM3200/
ADuM3201 products 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.
1 _{Protected by U.S. Patents 5,952,849; 6,873,065; 7,075,329.}
FUNCTIONAL BLOCK DIAGRAMS
V_DD1 1
8 V_DD2
V_IA 2
ENCODE
DECODE
7 V_OA
V_IB 3
ENCODE
DECODE
6 V_OB
GND₁ 4
5 GND₂
Figure 1. ADuM3200 Functional Block Diagram
V_DD1 1
8 V_DD2
V_OA 2
DECODE
ENCODE
7 V_IA
V_IB 3
ENCODE
DECODE
6 V_OB
GND₁ 4
5 GND₂
Figure 2. ADuM3201 Functional Block Diagram
Rev. D
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