5.0 kV rms Quad Digital Isolators
ADuM240D/ADuM240E/ADuM241D/ADuM241E/ADuM242D/ADuM242E
FUNCTIONAL BLOCK DIAGRAMS
Data Sheet
FEATURES
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
UL recognition: 5000 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice 5A
VDE certificate of conformity
ADuM240D/ADuM240E
1
2
3
16
15
14
V
V
DD1
DD2
GND
GND
1
IA
IB
IC
ID
2
ENCODE
ENCODE
ENCODE
ENCODE
DECODE
DECODE
DECODE
DECODE
V
V
V
V
V
V
V
OA
OB
OC
4
5
13
12
V
11 OD
6
7
8
NIC/V
10
9
DISABLE /NIC
E2
1
GND
GND
2
1
NOTES
1. NIC = NO INTERNAL CONNECTION. LEAVE THIS PIN FLOATING.
2. PIN 7 IS DISABLE AND PIN 10 IS NIC FOR THE ADuM240D, AND
1
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
PIN 7 IS NIC AND PIN 10 IS V FOR THE ADuM240E.
E2
V
IORM = 849 V peak
Figure 1. ADuM240D/ADuM240E Functional Block Diagram
8000 V peak reinforced surge isolation voltage
CQC certification per GB4943.1-2011
Backward compatibility
ADuM240E1/ADuM241E1/ADuM242E1 pin compatible
with ADuM2400/ADuM2401/ADuM2402
Low dynamic power consumption
1.8 V to 5 V level translation
ADuM241D/ADuM241E
1
2
3
16
15
14
V
V
DD1
DD2
GND
GND
1
IA
IB
IC
2
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
E1
2
E2
1
GND
GND
2
1
16-lead, RoHS compliant, SOIC package
Qualified for automotive applications
NOTES
1. PIN 7 IS DISABLE AND PIN 10 IS DISABLE FOR THE ADuM241D,
1
2
AND PIN 7 IS V AND PIN 10 IS V FOR THE ADuM241E.
E1 E2
APPLICATIONS
Figure 2. ADuM241D/ADuM241E Functional Block Diagram
General-purpose multichannel isolation
Serial peripheral interface (SPI)/data converter isolation
Industrial field bus isolation
ADuM242D/ADuM242E
1
2
3
16
15
14
V
V
DD1
DD2
GND
GND
1
IA
IB
2
ENCODE
ENCODE
DECODE
DECODE
DECODE
DECODE
ENCODE
ENCODE
V
V
V
V
V
OA
OB
IC
GENERAL DESCRIPTION
4
5
13
12
The ADuM240D/ADuM240E/ADuM241D/ADuM241E/
ADuM242D/ADuM242E1 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.
V
OC
OD
V
V
11 ID
6
7
8
DISABLE /V
10
9
DISABLE /V
E1
2
E2
1
GND
GND
2
1
NOTES
1. PIN 7 IS DISABLE AND PIN 10 IS DISABLE FOR THE ADuM242D,
1
2
AND PIN 7 IS V AND PIN 10 IS V FOR THE ADuM242E.
E1 E2
Figure 3. ADuM242D/ADuM242E Functional Block Diagram
systems as well as enabling voltage translation functionality
across the isolation barrier.
The ADuM240D/ADuM240E/ADuM241D/ADuM241E/
ADuM242D/ADuM242E 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 1.8 V to 5 V, providing compatibility with lower voltage
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 predetermined
state when the input power supply is not applied or the inputs are
disabled. The ADuM240E1/ADuM241E1/ ADuM242E1 are pin
compatible with the ADuM2400/ ADuM2401/ADuM2402.
1 Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending.
Rev. D 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.
Tel: 781.329.4700 ©2015–2018 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
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