3.75 kV rms Quad Digital Isolators
Data Sheet
ADuM140D/ADuM140E
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 registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2015 Analog Devices, Inc. All rights reserved.
Technical Support www.analog.com
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
150 Mbps minimum data rate
3.75 kV rms withstand voltage rating
Safety and regulatory approvals (pending)
UL recognition (pending)
3750 V rms for 1 minute per UL 1577
CSA component acceptance notice 5A
VDE certificate of conformity
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
V
IORM
= 848 V peak
CQC11-471543-2012
Backward compatibility
ADuM140E1 pin compatible with ADuM1400
Low dynamic power consumption
1.8 V to 5 V level translation
High temperature operation: 125°C
Failsafe high or low options
16-lead, RoHS-compliant, SOIC package
APPLICATIONS
General-purpose multichannel isolation
SPI interface/data converter isolation
Industrial field bus isolation
FUNCTIONAL BLOCK DIAGRAMS
ENCODE DECODE
ENCODE DECODE
ENCODE DECODE
ENCODE DECODE
V
DD1
GND
1
V
IA
V
IB
V
IC
V
ID
DISABLE
1
GND
1
V
DD2
GND
2
ADuM140D
V
OA
V
OB
V
OC
V
OD
NIC
GND
2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
13119-001
NIC = NO INTERNAL CONNECTION. LEAVE THIS PIN FLOATING.
Figure 1. ADuM140D Functional Block Diagram
ENCODE DECODE
ENCODE DECODE
ENCODE DECODE
ENCODE DECODE
V
DD1
GND
1
V
IA
V
IB
V
IC
V
ID
NIC
GND
1
V
DD2
GND
2
ADuM140E
V
OA
V
OB
V
OC
V
OD
V
E2
GND
2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
13119-002
NIC = NO INTERNAL CONNECTION. LEAVE THIS PIN FLOATING.
Figure 2. ADuM140E Functional Block Diagram
GENERAL DESCRIPTION
The ADuM140D/ADuM140E
1
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.
The ADuM140D/ADuM140E data channels are independent
and are available in a variety of configurations with a withstand
voltage rating of 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.
Unlike other optocoupler alternatives, dc correctness is ensured
in the absence of input logic transitions. Two different fail-safe
options are available, in which the outputs transition to a
predetermined state when the input power supply is not applied
or the inputs are disabled. The ADuM140E1 is pin compatible
with the ADuM1400.
1
Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending.
