Digital Isolators. ADuM1441 Datasheet

ADuM1441 Isolators. Datasheet pdf. Equivalent

ADuM1441 Datasheet
Recommendation ADuM1441 Datasheet
Part ADuM1441
Description Micropower Quad-Channel Digital Isolators
Feature ADuM1441; Data Sheet Micropower Quad-Channel Digital Isolators ADuM1440/ADuM1441/ADuM1442/ADuM1445/ADuM1446/A.
Manufacture Analog Devices
Datasheet
Download ADuM1441 Datasheet




Analog Devices ADuM1441
Data Sheet
Micropower
Quad-Channel Digital Isolators
ADuM1440/ADuM1441/ADuM1442/ADuM1445/ADuM1446/ADuM1447
FEATURES
FUNCTIONAL BLOCK DIAGRAMS
Ultralow power operation
3.3 V operation (typical)
5.6 μA per channel quiescent current, refresh enabled
0.3 μA per channel quiescent current, refresh disabled
148 μA/Mbps per channel typical dynamic current
2.5 V operation (typical)
3.1 μA per channel quiescent current, refresh enabled
0.1 μA per channel quiescent current, refresh disabled
117 μA/Mbps per channel typical dynamic current
Small, 16-lead QSOP and 20-Lead SSOP
Bidirectional communication
Up to 2 Mbps data rate (NRZ)
High temperature operation: 125°C
High common-mode transient immunity: >25 kV/μs
Safety and regulatory approvals
UL 1577 component recognition program
2500 V rms for 1 minute per UL 1577 QSOP package
3750V rms for 1 minute per UL 1577 SSOP package
CSA Component Acceptance Notice 5A
VDE certificate of conformity
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
VIORM = 565 VPEAK QSOP package
VIORM = 849 VPEAK SSOP package
IECEx and ATEX intrinsic safety
Sira 0518 II 1G Ex ia IIC Ga
APPLICATIONS
General-purpose, low power multichannel isolation
1 MHz, low power peripheral interface (SPI)
4 mA to 20 mA loop process controls
GENERAL DESCRIPTION
The ADuM1440/ADuM1441/ADuM1442/ADuM1445/
ADuM1446/ADuM14471 are micropower, 4-channel digital
isolators based on the Analog Devices, Inc., iCoupler® technology.
Combining high speed, complementary metal oxide semiconductor
(CMOS) and monolithic air core transformer technologies,
these isolation components provide outstanding performance
characteristics superior to the alternatives, such as optocoupler
devices. As shown in Figure 3, in standard operating mode,
when ENx = 0 (internal refresh enabled), the current per channel is
less than 10 μA. When ENx = 1 (internal refresh disabled), the
current per channel drops to less than 1 μA.
VDD1 1
GND1 2
VIA 3
ADuM144x
ENCODE
VIB 4
ENCODE
QSOP
DECODE
DECODE
VIC/VOC 5
ENCODE
DECODE
VID/VOD 6
EN1 7
GND1 8
ENCODE
DECODE
Figure 1.
16 VDD2
15 GND2
14 VOA
13 VOB
12 VOC/VIC
11 VOD/VID
10 EN2
9 GND2
VDD1 1
GND1 2
VIA 3
ADuM144x
ENCODE
VIB 4
ENCODE
DECODE
DECODE
VIC/VOC 5
ENCODE
DECODE
VID/VOD 6
EN1 7
NIC 8
ENCODE
DECODE
NIC 9
GND1 10
Figure 2.
20 VDD2
19 GND2
18 VOA
17 VOB
16 VOC/VIC
15 VOD/VID
14 EN2
13 NIC
12 NIC
11 GND2
freeing almost 70% of board space compared to isolators packages
in wide body SOIC packages.
The devices withstand high isolation voltages and meet regulatory
requirements, such as UL and CSA standards. In addition to the
space savings, the ADuM1440/ADuM1441/ADuM1442/
ADuM1445/ADuM1446/ADuM1447 operate with supplies as
low as 2.25 V.
Despite the low power consumption, all models of the ADuM1440/
ADuM1441/ADuM1442/ADuM1445/ADuM1446/ADuM1447
provide low, pulse width distortion at <8 ns. In addition, every
model has an input glitch filter to protect against extraneous
noise disturbances.
1000
100
10
ENx = 0
1 ENx = 1
The ADuM1440/ADuM1441/ADuM1442/ADuM1445/
ADuM1446/ADuM1447 family of quad 2.5 kV digital isolation
devices are packaged in a small 16-lead QSOP and 20-lead SSOP,
1 Protected by U.S. Patents 5,952,849, 6,873,065, 7,075,329, 6,262,600. Other patents pending.
0.1
0.1
1
10
100
1000
10000
DATA RATE (kbps)
Figure 3. Typical Total Supply Current per Channel (VDDx = 3.3 V)
Rev. E
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Tel: 781.329.4700 ©2013–2017 Analog Devices, Inc. All rights reserved.
Technical Support
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Analog Devices ADuM1441
ADuM1440/ADuM1441/ADuM1442/ADuM1445/ADuM1446/ADuM1447
Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagrams............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Electrical Characteristics—3.3 V Operation ............................ 3
Electrical Characteristics—2.5 V Operation ............................ 5
Electrical Characteristics—VDD1 = 3.3 V, VDD2 = 2.5 V
Operation....................................................................................... 7
Electrical Characteristics—VDD1 = 2.5 V, VDD2 = 3.3 V
Operation....................................................................................... 8
Package Characteristics ............................................................... 9
Regulatory Information............................................................... 9
Insulation and Safety Related Specifications .......................... 10
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 Insulation
Characteristics ............................................................................ 10
Intrinsic Safety ............................................................................ 11
Absolute Maximum Ratings ......................................................... 13
ESD Caution................................................................................ 13
Pin Configurations and Function Descriptions ......................... 14
Typical Performance Characteristics ........................................... 17
Applications Information .............................................................. 20
PCB Layout ................................................................................. 20
Propagation Delay-Related Parameters................................... 20
DC Correctness ............................................................................ 20
Magnetic Field Immunity............................................................. 21
Power Consumption .................................................................. 22
Insulation Lifetime ..................................................................... 22
Outline Dimensions ....................................................................... 24
Ordering Guide .......................................................................... 25
REVISION HISTORY
1/2017—Rev. D to Rev. E
Changes to Features Section............................................................ 1
Changes to Table 12.......................................................................... 9
Added Intrinsic Safety Section, Table 16; Renumbered Sequentially,
and Table 17..................................................................................... 11
4/2015—Rev. C to Rev. D
Change to General Description Section ........................................ 1
4/2015—Rev. B to Rev. C
Changes to Regulatory Information Section ................................ 9
3/2015—Rev. A to Rev. B
Changes to Features Section and Figure 3..................................... 1
Changes to Table 12.......................................................................... 9
Changes to Table 13 and Table 14 ................................................ 10
Updated Outline Dimensions ....................................................... 23
Changes to Ordering Guide .......................................................... 24
3/2014—Rev. 0 to Rev. A
Added SSOP Package.........................................................Universal
Changes to Features Section, Added Figure 2,
Renumbered Sequentially ................................................................1
Changes to Output Voltage Logic High Parameter, Table 3 ........4
Added Table 15, Renumbered Sequentially; Changes to
Figure 4 ............................................................................................ 11
Change to Supply Voltages (VDD1, VDD2) Parameter, Table 17........ 12
Added Figure 6; Changes to Table 20 .......................................... 13
Added Figure 8; Changes to Table 21 .......................................... 14
Added Figure 10, Changes to Table 22 ........................................ 15
Added Figure 30 ............................................................................. 19
Changes to Power Consumption Section; Added Table 23 ...... 21
Added Figure 27 ............................................................................. 23
Changes to Ordering Guide .......................................................... 24
10/2013—Revision 0: Initial Version
Rev. E | Page 2 of 25



Analog Devices ADuM1441
Data Sheet
ADuM1440/ADuM1441/ADuM1442/ADuM1445/ADuM1446/ADuM1447
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS—3.3 V OPERATION
All typical specifications are at TA = 25°C, VDD1 = VDD2 = 3.3 V. Minimum/maximum specifications apply over the entire recommended
operating range of 3.0 V ≤ VDD1 ≤ 3.6 V, 3.0 V ≤ VDD2 ≤ 3.6 V, and −40°C ≤ TA ≤ +125°C, unless otherwise noted. Switching specifications
are tested with CL = 15 pF, and CMOS signal levels, unless otherwise noted.
Table 1.
Parameter
SWITCHING SPECIFICATIONS
Data Rate
Propagation Delay
Change vs. Temperature
Minimum Pulse Width
Pulse-Width Distortion
Propagation Delay Skew1
Channel Matching
Codirectional
Opposing Direction
Symbol
tPHL, tPLH
PW
PWD
tPSK
tPSKCD
tPSKOD
Min Typ Max Unit Test Conditions/Comments
2 Mbps Within pulse-width distortion (PWD) limit
80 180 ns
50% input to 50% output
200 ps/°C
500 ns Within PWD limit
8 ns |tPLH − tPHL|
10 ns
10 ns
15 ns
1 tPSK is the magnitude of the worst-case difference in tPHL and tPLH that is measured between units at the same operating temperature, supply voltages, and output load within the
recommended operating conditions.
Table 2.
Parameter
Symbol
Min Typ Max
Unit Test Conditions/Comments
SUPPLY CURRENT
2 Mbps, no load
ADuM1440/ADuM1445
ADuM1441/ADuM1446
ADuM1442/ADuM1447
IDD1
IDD2
IDD1
IDD2
IDD1
IDD2
732 1000
492 750
672 900
552 900
612 900
612 900
µA
µA
µA
µA
µA
µA
ENX = 0 V, VIH = VDD, VIL = 0 V
ENX = 0 V, VIH = VDD, VIL = 0 V
ENX = 0 V, VIH = VDD, VIL = 0 V
ENX = 0 V, VIH = VDD, VIL = 0 V
ENX = 0 V, VIH = VDD, VIL = 0 V
ENX = 0 V, VIH = VDD, VIL = 0 V
Rev. E | Page 3 of 25







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