Quad Channel, High Speed
Digital Isolators
Data Sheet
ADuM3440/ADuM3441/ADuM3442
Rev. D
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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
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FEATURES
Low power operation
5 V operation
1.7 mA per channel maximum @ 0 Mbps to 2 Mbps
68 mA per channel maximum @ 150 Mbps
3.3 V operation
1.0 mA per channel maximum @ 0 Mbps to 2 Mbps
33 mA per channel maximum @ 150 Mbps
Bidirectional communication
3.3 V/5 V level translation
High temperature operation: 105°C
High data rate: dc to 150 Mbps (NRZ)
Precise timing characteristics
5 ns maximum pulse width distortion
5 ns maximum channel-to-channel matching
High common-mode transient immunity: >25 kV/μs
Output enable function
16-lead SOIC wide body 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
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
V
IORM
= 560 V peak
APPLICATIONS
High speed multichannel isolation
SPI interface/data converter isolation
Instrumentation
FUNCTIONAL BLOCK DIAGRAMS
ENCODE DECODE
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V
DD1
GND
1
V
IA
V
IB
V
IC
V
ID
NC
GND
1
V
DD2
GND
2
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
06837-001
ADuM3440
Figure 1. ADuM3440 Functional Block Diagram
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V
DD1
GND
1
V
IA
V
IB
V
IC
V
OD
V
E1
GND
1
V
DD2
GND
2
V
OA
V
OB
V
OC
V
ID
V
E2
GND
2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
06837-002
ADuM3441
Figure 2. ADuM3441 Functional Block Diagram
DECODE ENCODE
DECODE ENCODE
ENCODE DECODE
ENCODE DECODE
V
DD1
GND
1
V
IA
V
IB
V
OC
V
OD
V
E1
GND
1
V
DD2
GND
2
V
OA
V
OB
V
IC
V
ID
V
E2
GND
2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
06837-003
ADuM3442
Figure 3. ADuM3442 Functional Block Diagram
GENERAL DESCRIPTION
The ADuM344x
1
are four channel, digital isolators based on the
Analog Devices, Inc., iCoupler® technology supporting data rates
up to 150 Mbps. Combining 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 optocouplers. The 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.
Furthermore, iCoupler devices consume one-tenth to one-sixth
the power of optocouplers at comparable signal data rates.
The ADuM344x isolators provide four independent isolation
channels in a variety of channel configurations (see the
Ordering Guide). The ADuM344x operates with the supply
voltage on either side ranging from 3.0 V to 5.5 V, providing
compatibility with lower voltage systems as well as enabling
voltage translation functionality across the isolation barrier. In
addition, the ADuM344x provides low pulse width distortion
and tight channel-to-channel matching. Unlike other opto-
coupler alternatives, the ADuM344x isolators have a patented
refresh feature that ensures dc correctness in the absence of
input logic transitions and during the power-up/power-down
condition.
1
Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329.
ADuM3440/ADuM3441/ADuM3442 Data Sheet
Rev. D | Page 2 of 24
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Functional Block Diagrams ............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Electrical Characteristics5 V Operation................................ 3
Electrical Characteristics3.3 V Operation ............................ 5
Electrical CharacteristicsMixed 5 V/3.3 V or 3.3 V/5 V
Operation ....................................................................................... 7
Package Characteristics ............................................................. 10
Regulatory Information ............................................................. 10
Insulation and Safety-Related Specifications .......................... 10
DIN V VDE V 0884-10 (VDE V 0884-10) Insulation
Characteristics ............................................................................ 11
Recommended Operating Conditions .................................... 11
Absolute Maximum Ratings ......................................................... 12
ESD Caution................................................................................ 12
Pin Configurations and Function Descriptions ......................... 13
Typical Performance Characteristics ........................................... 16
Applications Information .............................................................. 18
PC Board Layout ........................................................................ 18
Propagation Delay-Related Parameters ................................... 18
System-Level ESD Considerations and Enhancements ........ 18
DC Correctness and Magnetic Field Immunity........................... 18
Power Consumption .................................................................. 19
Insulation Lifetime ..................................................................... 20
Outline Dimensions ....................................................................... 21
Ordering Guide .......................................................................... 21
REVISION HISTORY
2/12Rev. C to Rev. D
Created Hyperlink for Safety and Regulatory Approvals
Entry in Features Section ................................................................. 1
Change to PC Board Layout Section ............................................ 18
Updated Outline Dimensions ....................................................... 21
1/09—Rev. B to Rev. C
Change to Propagation Delay Parameter (Table 1) ......................
3
Change to Propagation Delay Parameter (Table 2) ...................... 5
Change to Propagation Delay Parameter (Table 3) ...................... 8
9/08Rev. A to Rev. B
Changes to Pulse Width Distortion, |t
PLH
− t
PHL
| Parameter and
Channel-to-Channel Matching, Codirectional Channels
Parameter, Table 1 ............................................................................. 3
Changes to Pulse Width Distortion, |t
PLH
− t
PHL
| Parameter and
Channel-to-Channel Matching, Codirectional Channels
Parameter, Table 2 ............................................................................. 5
Changes to Pulse Width Distortion, |t
PLH
− t
PHL
| Parameter and
Channel-to-Channel Matching, Codirectional Channels
Parameter, Table 3 ............................................................................. 8
5/08—Rev. 0 to Rev. A
Changes to Ordering Guide .......................................................... 21
11/07Rev. 0: Initial Version
Data Sheet ADuM3440/ADuM3441/ADuM3442
Rev. D | Page 3 of 24
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS5 V OPERATION
All voltages are relative to their respective ground. 4.5 V ≤ V
DD1
≤ 5.5 V, 4.5 V ≤ V
DD2
5.5 V. All minimum/maximum specifications
apply over the entire recommended operation range, unless otherwise noted. All typical specifications are at T
A
= 25°C, V
DD1
= V
DD2
= 5 V.
Table 1.
Parameter Symbol Min Typ Max Unit Test Conditions
DC SPECIFICATIONS
Input Supply Current per Channel, Quiescent I
DDI (Q)
0.75 1.3 mA
Output Supply Current per Channel, Quiescent I
DDO (Q)
0.5 1.2 mA
ADuM3440, Total Supply Current, Four Channels
1
DC to 2 Mbps
V
DD1
Supply Current I
DD1 (Q)
3 3.9 mA DC to 1 MHz logic signal frequency
V
DD2
Supply Current I
DD2 (Q)
2 3 mA DC to 1 MHz logic signal frequency
150 Mbps
V
DD1
Supply Current
I
DD1 (150)
120
220
mA
75 MHz logic signal frequency
V
DD2
Supply Current I
DD2 (150)
47 55 mA 75 MHz logic signal frequency
ADuM3441, Total Supply Current, Four Channels
1
DC to 2 Mbps
V
DD1
Supply Current
I
DD1 (Q)
2.8
3.6
mA
DC to 1 MHz logic signal frequency
V
DD2
Supply Current I
DD2 (Q)
2.3 2.9 mA DC to 1 MHz logic signal frequency
150 Mbps
V
DD1
Supply Current I
DD1 (150)
101 165 mA 75 MHz logic signal frequency
V
DD2
Supply Current I
DD2 (150)
65 80 mA 75 MHz logic signal frequency
ADuM3442, Total Supply Current, Four Channels
1
DC to 2 Mbps
V
DD1
or V
DD2
Supply Current I
DD1 (Q)
, I
DD2 (Q)
2.5 3.5 mA DC to 1 MHz logic signal frequency
150 Mbps
V
DD1
or V
DD2
Supply Current
I
DD1 (150)
, I
DD2 (150)
83
130
mA
75 MHz logic signal frequency
For All Models
Input Currents I
IA
, I
IB
, I
IC
,
I
ID
, I
E1
, I
E2
−10 +0.01 +10 µA
0 V
IA
, V
IB
, V
IC
, V
ID
V
DD1
or V
DD2
,
0
V
E1
, V
E2
V
DD1
or V
DD2
Logic High Input Threshold
V
IH
, V
EH
2.0 V
Logic Low Input Threshold
V
IL
, V
EL
0.8 V
Logic High Output Voltages V
OAH
, V
OBH
,
V
OCH
, V
ODH
(V
DD1
or
V
DD2
) − 0.1
5.0 V I
Ox
= −20 µA, V
Ix
= V
IxH
(V
DD1
or
V
DD2
) − 0.4
4.8 V I
Ox
= −4 mA, V
Ix
= V
IxH
Logic Low Output Voltages V
OAL
, V
OBL
,
V
OCL
, V
ODL
0.0 0.1 V I
Ox
= 20 µA, V
Ix
= V
IxL
0.04 0.1 V I
Ox
= 400 µA, V
Ix
= V
IxL
0.2 0.4 V I
Ox
= 4 mA, V
Ix
= V
IxL
SWITCHING SPECIFICATIONS
Minimum Pulse Width
2
PW 6.67 ns C
L
= 15 pF, CMOS signal levels
Maximum Data Rate
3
150 Mbps C
L
= 15 pF, CMOS signal levels
Propagation Delay
4
t
PHL
, t
PLH
20 32 ns C
L
= 15 pF, CMOS signal levels
Pulse Width Distortion, |t
PLH
− t
PHL
|
5
PWD 0.5 2 ns C
L
= 15 pF, CMOS signal levels
Change vs. Temperature 3 ps/°C C
L
= 15 pF, CMOS signal levels
Propagation Delay Skew
6
t
PSK
12
ns
C
L
= 15 pF, CMOS signal levels
Channel-to-Channel Matching,
Codirectional Channels
5
t
PSKCD
2 ns C
L
= 15 pF, CMOS signal levels
Channel-to-Channel Matching,
Opposing Directional Channels
5
t
PSKOD
5 ns C
L
= 15 pF, CMOS signal levels

ADUM3441CRWZ-RL

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Manufacturer:
Analog Devices Inc.
Description:
Digital Isolators Quad-CH High Speed Digital
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