5.0 kV RMS Triple Channel Digital Isolators
Data Sheet
ADuM230D/ADuM230E/ADuM231D/ADuM231E
Rev. A Document Feedback
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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 data rate
Safety and regulatory approvals (pending)
UL recognition
5000 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
= 849 V peak
8000 V peak reinforced surge isolation voltage (V
IOSM
)
CQC certification per GB4943.1-2011
Low dynamic power consumption
1.8 V to 5 V level translation
High temperature operation: 125°C
Fail-safe high or low options
16-lead, RoHS compliant, SOIC package
APPLICATIONS
General-purpose multichannel isolation
Serial peripheral interface (SPI)/data converter isolation
Industrial field bus isolation
GENERAL DESCRIPTION
The ADuM230D/ADuM230E/ADuM231D/ADuM231E
1
are
triple-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 ADuM230D/ADuM230E/ADuM231D/ADuM231E 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 systems as well as enabling
voltage translation functionality across the isolation barrier.
FUNCTIONAL BLOCK DIAGRAMS
Figure 1. ADuM230D Functional Block Diagram
Figure 2. ADuM230E Functional Block Diagram
Figure 3. ADuM231D Functional Block Diagram
Figure 4. ADuM231E 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
predetermined state when the input power supply is not applied
or the inputs are disabled.
1
Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending.
ENCODE DECODE
ENCODE DECODE
ENCODE DECODE
V
DD1
GND
1
V
IA
V
IB
V
IC
NIC
DISABLE
1
GND
1
V
DD2
GND
2
V
OA
V
OB
V
OC
NIC
NIC
GND
2
NIC = NO INTERNAL CONNECTION. LEAVE THIS PIN FLOATING.
16
15
14
13
12
11
10
1
2
3
4
5
6
7
98
ADuM230D
13577-001
ENCODE DECODE
ENCODE DECODE
ENCODE DECODE
V
DD1
NIC = NO INTERNAL CONNECTION. LEAVE THIS PIN FLOATING.
16
15
14
13
12
11
10
1
2
3
4
5
6
7
98
ADuM230E
GND
1
V
IA
V
IB
V
IC
NIC
NIC
GND
1
V
DD2
GND
2
V
OA
V
OB
V
OC
NIC
V
E2
GND
2
13577-002
ENCODE DECODE
ENCODE DECODE
DECODE ENCODE
V
DD1
GND
1
V
IA
V
IB
V
OC
NIC
DISABLE
1
GND
1
V
DD2
GND
2
V
OA
V
OB
V
IC
NIC
DISABLE
2
GND
2
NIC = NO INTERNAL CONNECTION. LEAVE THIS PIN FLOATING.
16
15
14
13
12
11
10
1
2
3
4
5
6
7
98
ADuM231D
13577-101
ENCODE DECODE
ENCODE DECODE
DECODE ENCODE
V
DD1
NIC = NO INTERNAL CONNECTION. LEAVE THIS PIN FLOATING.
16
15
14
13
12
11
10
1
2
3
4
5
6
7
98
ADuM231E
GND
1
V
IA
V
IB
V
OC
V
E1
NIC
GND
1
V
DD2
GND
2
V
OA
V
OB
V
IC
NIC
V
E2
GND
2
13577-102
