Quad-Channel Digital Isolators
ADuM1410/ADuM1411/ADuM1412
FEATURES
FUNCTIONAL BLOCK DIAGRAMS
Low power operation
5 V operation
1
2
3
16
15
14
V
V
DD1
DD2
ADuM1410
GND
GND
1
2
1.3 mA per channel max @ 0 Mbps to 2 Mbps
4.0 mA per channel max @ 10 Mbps
3 V operation
0.8 mA per channel max @ 0 Mbps to 2 Mbps
1.8 mA per channel max @ 10 Mbps
Bidirectional communication
3 V/5 V level translation
High temperature operation: 105°C
Up to 10 Mbps data rate (NRZ)
Programmable default output state
High common-mode transient immunity: >25 kV/μs
16-lead, Pb-free, SOIC wide body package
Safety and regulatory approvals
UL recognition: 2500 V rms for 1 minute per UL 1577
CSA component acceptance notice #5A
VDE certificate of conformity (pending)
DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01
DIN EN 60950 (VDE 0805): 2001-12; EN 60950: 2000
V
V
ENCODE
ENCODE
ENCODE
ENCODE
DECODE
DECODE
DECODE
DECODE
V
V
V
V
IA
OA
OB
OC
OD
4
5
13
12
IB
V
IC
6
7
8
11
10
9
V
ID
DISABLE
GND
CTRL
GND
1
2
Figure 1. ADuM1410 Functional Block Diagram
1
2
3
16
15
14
V
V
DD1
DD2
ADuM1411
GND
GND
1
2
V
V
ENCODE
ENCODE
ENCODE
DECODE
DECODE
DECODE
DECODE
ENCODE
V
V
V
V
IA
OA
OB
OC
ID
4
5
13
12
IB
V
IC
6
7
8
11
10
9
V
OD
CTRL
GND
CTRL
2
1
GND
1
2
Figure 2. ADuM1411 Functional Block Diagram
V
IORM = 560 V peak
1
2
3
16
15
14
V
V
DD2
DD1
ADuM1412
APPLICATIONS
GND
V
GND
1
2
ENCODE
ENCODE
DECODE
DECODE
DECODE
DECODE
ENCODE
ENCODE
V
General-purpose multichannel isolation
SPI® interface/data converter isolation
RS-232/RS-422/RS-485 transceiver
Industrial field bus isolation
IA
IB
OA
V
4
5
13
12
V
OB
V
V
V
V
OC
IC
ID
6
7
8
11
10
9
OD
CTRL
GND
CTRL
2
1
GND
1
2
Figure 3. ADuM1412 Functional Block Diagram
GENERAL DESCRIPTION
Furthermore, iCoupler devices consume one-tenth to one-sixth
The ADuM141x1 are four-channel digital isolators based on
Analog Devices, Inc. iCoupler® technology. Combining high
speed CMOS and monolithic air core transformer technologies,
these isolation components provide outstanding performance
characteristics superior to alternatives such as optocoupler devices.
the power of optocouplers at comparable signal data rates.
The ADuM141x isolators provide four independent isolation
channels in a variety of channel configurations and data rates
(see the Ordering Guide) up to 10 Mbps. All models operate
with the supply voltage on either side ranging from 2.7 V to 5.5 V,
providing compatibility with lower voltage systems as well as
enabling voltage translation functionality across the isolation
barrier. All products also have a default output control pin. This
allows the user to define the logic state the outputs are to adopt
in the absence of the input power. Unlike other optocoupler
alternatives, the ADuM141x isolators have a patented refresh
feature that ensures dc correctness in the absence of input logic
transitions and during power-up/power-down conditions.
By avoiding the use of LEDs and photodiodes, iCoupler devices
remove the design difficulties commonly associated with opto-
couplers. The usual concerns that arise with optocouplers, such
as uncertain current transfer ratios, nonlinear transfer functions,
and temperature and lifetime effects are eliminated with the
simple iCoupler digital interfaces and stable performance charac-
teristics. The need for external drivers and other discrete
components is eliminated with these iCoupler products.
1 Protected by U.S. Patents 5,952,849, 6,873,065 and 7,075,329. Other patents pending.
Rev. E
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
Fax: 781.461.3113
www.analog.com
©2006 Analog Devices, Inc. All rights reserved.
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