3.0 kV RMS/3.75 kV RMS
Quad Digital Isolators
Data Sheet
ADuM140D/ADuM140E/ADuM141D/ADuM141E/ADuM142D/ADuM142E
FEATURES
FUNCTIONAL BLOCK DIAGRAMS
High common-mode transient immunity: 100 kV/μs
High robustness to radiated and conducted noise
Low propagation delay
ADuM140D/ADuM140E
1
2
3
16
15
14
V
V
DD2
DD1
GND
GND
2
1
IA
IB
IC
ID
ENCODE
ENCODE
ENCODE
ENCODE
DECODE
DECODE
DECODE
DECODE
V
V
V
V
V
V
V
OA
OB
OC
13 ns maximum for 5 V operation
4
5
13
12
15 ns maximum for 1.8 V operation
150 Mbps maximum guaranteed data rate
Safety and regulatory approvals (pending)
UL recognition
V
11 OD
6
7
8
NIC/V
10
9
DISABLE /NIC
E2
1
GND
GND
2
1
3000 V rms/3750 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice 5A
VDE certificate of conformity
NOTES
1. NIC = NO INTERNAL CONNECTION. LEAVE THIS PIN FLOATING.
2. PIN 7 IS DISABLE AND PIN 10 IS NIC FOR THE ADuM140D, AND
1
PIN 7 IS NIC AND PIN 10 IS V FOR THE ADuM140E.
E2
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
Figure 1. ADuM140D/ADuM140E Functional Block Diagram
V
IORM = 849 V peak
CQC certification per GB4943.1-2011
Backward compatibility
ADuM140E1/ADuM141E1/ADuM142E1 pin-compatible
with ADuM1400/ADuM1401/ADuM1402
Low dynamic power consumption
1.8 V to 5 V level translation
ADuM141D/ADuM141E
1
2
3
16
15
14
V
V
DD2
DD1
GND
GND
2
1
IA
IB
IC
ENCODE
ENCODE
ENCODE
DECODE
DECODE
DECODE
DECODE
ENCODE
V
V
V
V
V
V
OA
OB
OC
4
5
13
12
V
V
11 ID
OD
6
7
8
High temperature operation: 125°C
Fail-safe high or low options
DISABLE /V
10
9
DISABLE /V
2
E2
1
E1
GND
GND
2
1
16-lead, RoHS compliant, SOIC package
NOTES
1. PIN 7 IS DISABLE AND PIN 10 IS DISABLE FOR THE ADuM141D,
1
2
APPLICATIONS
AND PIN 7 IS V AND PIN 10 IS V FOR THE ADuM141E.
E1
E2
General-purpose multichannel isolation
Serial peripheral interface (SPI)/data converter isolation
Industrial field bus isolation
Figure 2. ADuM141D/ADuM141E Functional Block Diagram
ADuM142D/ADuM142E
1
2
3
16
15
14
V
V
DD2
DD1
GND
GND
2
GENERAL DESCRIPTION
1
IA
IB
ENCODE
ENCODE
DECODE
DECODE
DECODE
DECODE
ENCODE
ENCODE
V
V
V
V
V
OA
OB
IC
The ADuM140D/ADuM140E/ADuM141D/ADuM141E/
ADuM142D/ADuM142E1 are quad-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 3 ns at 5 V operation.
Channel matching is tight at 3.0 ns maximum.
4
5
13
12
V
OC
OD
V
V
11 ID
6
7
8
DISABLE /V
10
9
DISABLE /V
2
E2
1
E1
GND
GND
2
1
NOTES
1. PIN 7 IS DISABLE AND PIN 10 IS DISABLE FOR THE ADuM142D,
1
2
AND PIN 7 IS V AND PIN 10 IS V FOR THE ADuM142E.
E1
E2
Figure 3. ADuM142D/ADuM142E Functional Block Diagram
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 pre-
determined state when the input power supply is not applied or the
inputs are disabled. The ADuM140E1/ADuM141E1/ADuM142E1
are pin-compatible with the ADuM1400/ADuM1401/ADuM1402.
The ADuM140D/ADuM140E/ADuM141D/ADuM141E/
ADuM142D/ADuM142E data channels are independent and
are available in a variety of configurations with a withstand
voltage rating of 3.0 kV rms or 3.75 kV rms (see the Ordering
Guide). The devices operate with the supply voltage on either side
ranging from 1.8 V to 5 V, providing compatibility with lower
voltage systems as well as enabling voltage translation functionality
across the isolation barrier.
1 Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329.
Other patents are pending.
Rev. B
Document Feedback
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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
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www.analog.com
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