Triple-Channel Digital Isolators
Data Sheet
ADuM1310/ADuM1311
Rev. K Document Feedback
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FEATURES
Low power operation
5 V operation
1.7 mA per channel maximum at 0 Mbps to 2 Mbps
4.0 mA per channel maximum at 2 Mbps to 10 Mbps
3 V operation
1.0 mA per channel maximum at 0 Mbps to 2 Mbps
2.1 mA per channel maximum at 2 Mbps to 10 Mbps
Bidirectional communication
3 V/5 V level translation
Schmitt trigger inputs
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, RoHS-compliant, SOIC wide body package
8.1 mm external creepage
Safety and regulatory approvals
UL recognition: 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
= 560 V peak working voltage
APPLICATIONS
General-purpose multichannel isolation
SPI interface/data converter isolation
RS-232/RS-422/RS-485 transceiver
Industrial field bus isolation
FUNCTIONAL BLOCK DIAGRAMS
ENCODE DECODE
ENCODE DECODE
ENCODE DECODE
V
DD1
GND
1
V
IA
V
IB
V
IC
NC
DISABLE
GND
1
V
DD2
GND
2
V
OA
V
OB
V
OC
NC
CTRL
2
GND
2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
04904-001
ADuM1310
Figure 1. ADuM1310
DECODE ENCODE
ENCODE DECODE
ENCODE DECODE
V
DD1
GND
1
V
IA
V
IB
V
OC
NC
CTRL
1
GND
1
V
DD2
GND
2
V
OA
V
OB
V
IC
NC
CTRL
2
GND
2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
04904-002
ADuM1311
Figure 2. ADuM1311
GENERAL DESCRIPTION
The ADuM1310/ADuM1311
1
are 3-channel digital isolators
based on Analog Devices, Inc., iCoupler® technology. Combin-
ing high speed CMOS and monolithic air core transformer
technology, these isolation components provide outstanding
performance characteristics superior to alternatives such as
optocoupler devices.
By avoiding the use of LEDs and photodiodes, iCoupler devices
remove the design difficulties commonly associated with opto-
couplers. The typical optocoupler concerns regarding uncertain
current transfer ratios, maximum operating temperature, and
lifetime effects are eliminated with the simple iCoupler digital
interfaces and stable performance characteristics. The need for
external drivers and other discrete components is eliminated
with these iCoupler products. Furthermore, iCoupler devices
consume one-tenth to one-sixth the power of optocouplers at
comparable signal data rates. The iCoupler also offers higher
channel densities and more options for channel directionality.
The ADuM1310/ADuM1311 isolators provide three
independent isolation channels in a variety of channel
configurations and data rates up to 10 Mbps (see the Ordering
Guide). 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 allow the
user to predetermine the default output state in the absence of input
V
DD1
power with a simple control pin. Unlike other optocoupler
alternatives, the ADuM1310/ADuM1311 isolators have a patented
refresh feature that ensures dc correctness in the absence of input
logic transitions and during power-up/ power-down conditions.
1
Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents pending.