5.0 kV RMS, 5-Channel Digital Isolators
Data Sheet
ADuM250N/ADuM251N/ADuM252N
FEATURES
FUNCTIONAL BLOCK DIAGRAMS
High common-mode transient immunity: 100 kV/μs
High robustness to radiated and conducted noise
Low propagation delay
13 ns maximum for 5 V operation
15 ns maximum for 1.8 V operation
150 Mbps maximum guaranteed data rate
Safety and regulatory approvals (pending)
UL recognition: 5000 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice 5A
VDE certificate of conformity
V
V
V
V
V
V
V
1
2
3
4
5
6
7
8
ADuM250N
16
15
14
13
12
11
10
9
DD1
DD2
OA
OB
OC
OD
OE
V
ENCODE
DECODE
DECODE
DECODE
DECODE
DECODE
IA
V
ENCODE
ENCODE
ENCODE
ENCODE
IB
V
IC
V
ID
V
IE
NIC
GND
NIC
GND
1
2
Figure 1. ADuM250N Functional Block Diagram
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
V
IORM = 849 V peak
V
V
1
2
3
4
5
6
7
8
ADuM251N
16
15
14
13
12
11
10
9
DD1
DD2
OA
OB
OC
OD
IE
CQC certification per GB4943.1-2011
Low dynamic power consumption
1.8 V to 5 V level translation
High temperature operation: 125°C
Fail-safe high or low options
V
V
V
V
V
V
ENCODE
DECODE
DECODE
DECODE
DECODE
ENCODE
IA
V
ENCODE
ENCODE
ENCODE
DECODE
IB
V
IC
V
ID
V
OE
16-lead, RoHS compliant, wide-body SOIC_IC package
NIC
GND
NIC
APPLICATIONS
GND
1
2
General-purpose multichannel isolation
Serial peripheral interface (SPI)/data converter isolation
Industrial field bus isolation
Figure 2. ADuM251N Functional Block Diagram
V
V
1
2
3
4
5
6
7
8
ADuM252N
16
15
14
13
12
11
10
9
DD1
DD2
OA
OB
OC
ID
GENERAL DESCRIPTION
V
V
V
V
V
V
ENCODE
DECODE
DECODE
DECODE
ENCODE
ENCODE
IA
The ADuM250N/ADuM251N/ADuM252N1 are 5-channel
digital isolators based on Analog Devices, Inc., iCoupler®
technology. Combining high speed, complementary metal-oxide
semiconductor (CMOS) and monolithic air core transformer
technology, these isolation components provide outstanding
performance characteristics superior to alternatives such as
optocoupler devices and other integrated couplers. The
maximum propagation delay is 13 ns with a pulse width
distortion of less than 4.5 ns at 5 V operation. Channel to
channel matching of propagation delay is tight at 4.0 ns
maximum.
V
ENCODE
ENCODE
DECODE
DECODE
IB
V
IC
V
OD
V
OE
IE
NIC
GND
NIC
GND
1
2
Figure 3. ADuM252N Functional Block Diagram
The ADuM250N/ADuM251N/ADuM252N data channels are
independent and are available in a variety of configurations
with a withstand voltage rating of 5.0 kV rms (see the Ordering
Guide). The devices operate with the supply voltage on either
side ranging from 1.7 V to 5.5 V, providing compatibility with
lower voltage systems as well as enabling voltage translation
functionality across the isolation barrier.
Unlike other optocoupler alternatives, dc correctness is ensured
in the absence of input logic transitions. Two different fail-safe
options are available by which the outputs transition to a predeter-
mined state when the input power supply is not applied.
1 Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending.
Rev. 0 Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
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 registeredtrademarks arethe property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
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Technical Support
©2016 Analog Devices, Inc. All rights reserved.
www.analog.com
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