Quad-Channel Digital Isolators
Data Sheet
ADuM2400/ADuM2401/ADuM2402
FEATURES
FUNCTIONAL BLOCK DIAGRAMS
Low power operation
5 V operation
1
2
3
ADuM2400 16
V
V
DD1
DD2
15
GND
GND
1
2
1.0 mA per channel maximum @ 0 Mbps to 2 Mbps
3.5 mA per channel maximum @ 10 Mbps
31 mA per channel maximum @ 90 Mbps
3 V operation
0.7 mA per channel maximum @ 0 Mbps to 2 Mbps
2.1 mA per channel maximum @ 10 Mbps
20 mA per channel maximum @ 90 Mbps
Bidirectional communication
14
13
12
V
V
ENCODE
ENCODE
ENCODE
ENCODE
DECODE
DECODE
DECODE
DECODE
V
V
V
IA
OA
OB
OC
4
5
IB
V
IC
ID
6
7
8
11
10
9
V
V
V
OD
E2
NC
GND
GND
1
2
Figure 1. ADuM2400
3 V/5 V level translation
1
2
3
16
15
14
V
V
ADuM2401
DD1
DD2
High temperature operation: 105°C
High data rate: dc to 90 Mbps (NRZ)
Precise timing characteristics
2 ns maximum pulse width distortion
2 ns maximum channel-to-channel matching
High common-mode transient immunity: >25 kV/μs
Output enable function
GND
GND
2
1
V
V
ENCODE
DECODE
DECODE
DECODE
ENCODE
V
V
V
IA
OA
OB
OC
4
5
13
12
ENCODE
ENCODE
DECODE
IB
V
IC
6
7
8
11
10
9
V
V
V
OD
ID
V
E1
E2
GND
GND
1
2
16-lead SOIC wide body package version (RW-16)
16-lead SOIC wide body enhanced creepage version (RI-16)
Safety and regulatory approvals (RI-16 package)
UL recognition: 5000 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice #5A
IEC 60601-1: 250 V rms (reinforced)
IEC 60950-1: 400 V rms (reinforced)
VDE Certificate of Conformity
Figure 2. ADuM2401
1
2
3
16
15
14
V
V
ADuM2402
DD1
DD2
GND
GND
1
2
V
V
ENCODE
DECODE
DECODE
ENCODE
ENCODE
V
V
V
IA
OA
OB
IC
4
5
13
12
ENCODE
DECODE
DECODE
IB
V
V
OC
6
7
8
11
10
9
V
V
OD
ID
V
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
E1
E2
GND
GND
1
2
V
IORM = 846 V peak
Figure 3. ADuM2402
APPLICATIONS
iCoupler digital interfaces and stable performance characteristics.
Furthermore, iCoupler devices run at one-tenth to one-sixth
the power of optocouplers at comparable signal data rates.
General-purpose, high voltage, multichannel isolation
Medical equipment
Motor drives
Power supplies
The ADuM240x isolators provide four independent isolation
channels in a variety of channel configurations and data rates (see
the Ordering Guide). The ADuM240x models operate with the
supply voltage of either side ranging from 2.7 V to 5.5 V, providing
compatibility with lower voltage systems as well as enabling a
voltage translation functionality across the isolation barrier. In
addition, the ADuM240x provide low pulse width distortion (<2 ns
for CRWZ grade) and tight channel-to-channel matching (<2 ns
for CRWZ grade). The ADuM240x isolators have a patented
refresh feature that ensures dc correctness in the absence of input
logic transitions and during power-up/power-down conditions
GENERAL DESCRIPTION
The ADuM240x1 are 4-channel digital isolators based on Analog
Devices, Inc., iCoupler® technology. Combining high speed CMOS
and monolithic air core transformer technology, these isolation
components provide outstanding performance characteristics that
are superior to alternatives, such as optocoupler devices.
By avoiding the use of LEDs and photodiodes, iCoupler devices
remove the design difficulties commonly associated with opto-
couplers. The typical optocoupler concerns regarding uncertain
current transfer ratios, nonlinear transfer functions, and
temperature and lifetime effects are eliminated with the simple
1 Protected by U.S. Patents 5,952,849; 6,873,065; and 7,075,329.
Rev. D
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.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2005–2011 Analog Devices, Inc. All rights reserved.
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