Triple-Channel, Digital Isolators,
Enhanced System-Level ESD Reliability
ADuM3300/ADuM3301
FEATURES
GENERAL DESCRIPTION
The ADuM330x1 are 3-channel digital isolators based on
Analog Devices’ iCoupler® technology. Combining high speed
CMOS and monolithic air core transformer technology, these
isolation components provide outstanding performance
Enhanced system-level ESD performance per IEC 61000-4-x
Low power operation
5 V operation
2.0 mA per channel maximum @ 0 Mbps to 2 Mbps
4.1 mA per channel maximum @ 10 Mbps
36 mA per channel maximum @ 90 Mbps
3 V operation
1.0 mA per channel maximum @ 0 Mbps to 2 Mbps
2.8 mA per channel maximum @ 10 Mbps
17 mA per channel maximum @ 90 Mbps
Bidirectional communication
characteristics superior to alternatives, such as optocoupler devices.
iCoupler devices remove the design difficulties commonly
associated with optocouplers. Typical optocoupler concerns
regarding uncertain current transfer ratios, nonlinear transfer
functions, and 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.
3 V/5 V level translation
High temperature operation: 105°C
High data rate: dc to 90 Mbps (NRZ)
Precise timing characteristics
Furthermore, iCoupler devices consume one-tenth to one-sixth the
power of optocouplers at comparable signal data rates.
2 ns maximum pulse-width distortion
2 ns maximum channel-to-channel matching
High common-mode transient immunity: >25 kV/μs
Output enable function
16-lead SOIC wide body, Pb-free package
Safety and regulatory approvals
UL recognition: 2500 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice #5A
VDE Certificate of Conformity
The ADuM330x isolators provide three independent isolation
channels in a variety of channel configurations and data rates
(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 a
voltage translation functionality across the isolation barrier. The
ADuM330x isolators have a patented refresh feature that ensures dc
correctness in the absence of input logic transitions and during
power-up/power-down conditions.
DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01
DIN EN 60950 (VDE 0805): 2001-12; EN 60950: 2000
VIORM = 560 V peak
In comparison to the ADuM130x isolators, the ADuM330x
isolators contain various circuit and layout changes to provide
increased capability relative to system-level IEC 61000-4-x
testing (ESD, burst, surge). The precise capability in these tests
for either the ADuM130x or ADuM330x products is strongly
determined by the design and layout of the user’s system.
APPLICATIONS
General-purpose multichannel isolation
SPI® interface/data converter isolation
RS-232/RS-422/RS-485 transceivers
Industrial field bus isolation
1 Protected by U.S. Patents 5,952,849 and 6,873,065. Other patents pending.
FUNCTIONAL BLOCK DIAGRAMS
V
1
2
3
4
5
6
7
8
16
V
V
1
2
3
4
5
6
7
8
16 V
DD1
DD2
DD1
DD2
15 GND
2
GND
15 GND
2
GND
1
IA
IB
IC
1
IA
IB
ENCODE
ENCODE
ENCODE
DECODE
DECODE
DECODE
ENCODE
ENCODE
DECODE
DECODE
DECODE
ENCODE
V
V
V
14
13
12
V
V
V
V
V
14
13
12
V
V
V
OA
OB
OC
OA
OB
IC
V
OC
NC
NC
11 NC
NC
11 NC
10
9
V
V
10
9
V
E2
E1
E2
GND
GND
2
GND
GND
1
1
2
Figure 1. ADuM3300 Functional Block Diagram
Figure 2. ADuM3301 Functional Block Diagram
Rev. 0
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
Fax: 781.461.3113
www.analog.com
©2006 Analog Devices, Inc. All rights reserved.
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