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ADUM1280BRZ-RL7

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
3 kV RMS Dual Channel Digital Isolators
Data Sheet
ADuM1280/ADuM1281/ADuM1285/ADuM1286
Rev. D Document Feedback
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 registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2012–2017 Analog Devices, Inc. All rights reserved.
Technical Support www.analog.com
FEATURES
Up to 100 Mbps data rate (NRZ)
Low propagation delay: 23 ns typical
Low dynamic power consumption
Bidirectional communication
3.3 V to 5 V level translation
High temperature operation: 125°C
High common-mode transient immunity: >25 kV/μs
Default high output: ADuM1280/ADuM1281
Default low output: ADuM1285/ADuM1286
Narrow body, RoHS-compliant, 8-lead SOIC
Safety and regulatory approvals
UL recognition: 3000 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
Qualified for automotive applications
APPLICATIONS
General-purpose multichannel isolation
Data converter isolation
Industrial field bus isolation
Hybrid electric vehicles, battery monitor, and motor drive
FUNCTIONAL BLOCK DIAGRAMS
ENCODE DECODE
ENCODE DECODE
V
DD1
V
IA
V
IB
GND
1
V
DD2
V
OA
V
OB
GND
2
1
2
3
4
8
7
6
5
ADuM1280/
ADuM1285
10444-001
Figure 1. ADuM1280/ADuM1285
ENCODE DECODE
DECODE ENCODE
V
DD1
V
OA
V
IB
GND
1
V
DD2
V
IA
V
OB
GND
2
1
2
3
4
8
7
6
5
ADuM1281/
ADuM1286
10444-002
Figure 2. ADuM1281/ADuM1286
GENERAL DESCRIPTION
The ADuM1280/ADuM1281/ADuM1285/ADuM1286
1
are dual-
channel digital isolators based on the Analog Devices, Inc.,
iCoupler® technology. Combining high speed 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.
With propagation delay at 23 ns, pulse width distortion is less
than 2 ns for C grade. Channel-to-channel matching is tight at
5 ns for C grade. The two channels of the ADuM1280/ADuM1281/
ADuM1285/ADuM1286 are independent isolation channels
and are available in two channel configurations with three
different data rates up to 100 Mbps (see the Ordering Guide).
Industrial grade models operate with the supply voltage on
either side ranging from 3.135 V to 5.5 V and the automotive
grades operate from 3.135 V to 5.5 V, providing compatibility
with lower voltage systems as well as enabling a voltage
translation functionality across the isolation barrier. Unlike
other optocoupler alternatives, the ADuM1280/ADuM1281/
ADuM1285/ADuM1286 isolators have a patented refresh
feature that ensures dc correctness in the absence of input logic
transitions. When power is first applied or is not yet applied to
the input side, the ADuM1280 and ADuM1281 have a default
high output, and the ADuM1285 and ADuM1286 have a default
low output.
For more information on safety and regulatory approvals, go to
www.analog.com/icouplersafety.
1
Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending.
ADuM1280/ADuM1281/ADuM1285/ADuM1286 Data Sheet
Rev. D | Page 2 of 18
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Functional Block Diagrams ............................................................... 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Electrical Characteristics—5 V Operation................................ 3
Electrical Characteristics—3.3 V Operation ............................ 4
Electrical Characteristics—Mixed 5 V/3.3 V Operation ........ 5
Electrical Characteristics—Mixed 3.3 V/5 V Operation ........ 7
Package Characteristics ............................................................... 8
Regulatory Information ................................................................. 8
Insulation and Safety-Related Specifications ................................ 8
DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12
Insulation Characteristics ............................................................ 9
Recommended Operating Conditions .......................................9
Absolute Maximum Ratings ......................................................... 10
ESD Caution................................................................................. 10
Pin Configuration and Function Descriptions ........................... 11
Typical Performance Characteristics ........................................... 13
Applications Information .............................................................. 14
Printed Circuit Board Layout ................................................... 14
Propagation Delay-Related Parameters ................................... 14
DC Correctness and Magnetic Field Immunity ..................... 14
Power Consumption .................................................................. 15
Insulation Lifetime ..................................................................... 16
Outline Dimensions ....................................................................... 17
Ordering Guide .......................................................................... 17
Automotive Products ................................................................... 18
REVISION HISTORY
2/2017—Rev. C to Rev. D
Changes to Features Section and General Description Section ..... 1
Changed Electrical Characteristics—5 V Operation (All Grades)
Section to Electrical Characteristics—5 V Operation Section ... 3
Changes to Propagation Delay Parameter, Table 1 ...................... 3
Changes to Table 3 ............................................................................ 4
Changed Electrical Characteristics—3 V Operation (A, B, and
C Grades) Section to Electrical Characteristics—3.3 V
Operation Section ............................................................................. 4
Changes to Table 4 and Table 5 ....................................................... 4
Changed Electrical Characteristics—Mixed 5 V/3 V Operation
(A, B, and C Grades) Section to Electrical Characteristics—
Mixed 5 V/3.3 V Operation Section .............................................. 5
Changes to Table 7 ............................................................................ 5
Changes to Table 8 ............................................................................ 6
Changed Electrical Characteristics—Mixed 3 V/5 V Operation
(A, B, and C Grades) Section to Electrical Characteristics—
Mixed 3.3 V/5 V Operation Section .............................................. 7
Changes to Table 10, Table 11, and Table 12 ................................. 7
Deleted Electrical Characteristics—3 V Operation (WA, WB,
and WC Grades) Section, Table 13, and Table 14; Renumbered
Sequentially ....................................................................................... 8
Deleted Table 15, Electrical Characteristics—Mixed 5 V/3 V
Operation (WA, WB, and WC Grades) Section, and Table 16 ... 9
Changes to Table 16 and Table 17 .................................................. 9
Deleted Table 17 and Table 18 ...................................................... 10
Deleted Electrical Characteristics—Mixed 3 V/5 V Operation
(WA, WB, and WC Grades) Section and Table 19 to Table 21 .... 11
Changes to Table 20 and Table 21 ................................................ 11
Changes to Figure 6 to Figure 11 .................................................. 13
Changes to DC Correctness and Magnetic Field Immunity
Section .............................................................................................. 14
7/2015—Rev. B to Rev. C
Change to General Description Section ......................................... 1
Changed 2.7 V ≤ V
DDX
≤ 3.6 V to 3.0 V ≤ V
DDX
≤ 3.6 V ............... 4
Changed 2.7 V ≤ V
DD2
≤ 3.6 V to 3.0 V ≤ V
DD2
≤ 3.6 V ................ 5
Changed 2.7 V ≤ V
DD1
≤ 3.6 V to 3.0 V ≤ V
DD1
≤ 3.6 V ................ 7
Change to Table 26 ......................................................................... 13
Changes to Table 29 and Table 30 ................................................ 15
3/2014—Rev. A to Rev. B
Change to Features ............................................................................ 1
Changes to Regulatory Information Section and Table 23 ....... 10
Changes to Table 24 ....................................................................... 10
3/2013—Rev. 0 to Rev. A
Changes to Features Section, Applications Section, and General
Description Section ...................................................................................... 1
Added Table 13 to Table 21; Renumbered Sequentially ...................... 7
Changes to Table 26 ................................................................................... 11
Changes to Table 29 and Table 30 .......................................................... 13
Changes to Ordering Guide .................................................................... 19
Added Automotive Products Section ................................................... 19
5/2012—Revision 0: Initial Version
Data Sheet ADuM1280/ADuM1281/ADuM1285/ADuM1286
Rev. D | Page 3 of 18
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS—5 V OPERATION
All typical specifications are at T
A
= 25°C, V
DD1
= V
DD2
= 5 V. Minimum/maximum specifications apply over the entire recommended operation
range: 4.5 V ≤ V
DD1
≤ 5.5 V, 4.5 V ≤ V
DD2
≤ 5.5 V, −40°C ≤ T
A
≤ 125°C, unless otherwise noted. Switching specifications are tested with C
L
= 15 pF
and CMOS signal levels, unless otherwise noted.
Table 1.
A, WA Grades
Parameter Symbol Min Typ Max Min Typ Max Min Typ Max Unit Test Conditions
SWITCHING SPECIFICATIONS
Pulse Width PW 1000 40 10 ns Within PWD limit
Data Rate 1 25 100 Mbps Within PWD limit
Propagation Delay t
PHL
, t
PLH
50 35 20 23 29 ns 50% input to 50%
output
Pulse Width Distortion
PWD
10
3
2
ns
|t
PLH
− t
PHL
|
Change vs. Temperature 7 3 1.5 ps/°C
Propagation Delay Skew t
PSK
38 12 9 ns Between any
two units at same
operating conditions
Channel Matching
1
Codirectional t
PSKCD
5 3 2 ns
Opposing-Direction t
PSKOD
10 6 5 ns
Jitter 2 2 1 ns
1
Codirectional channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on the same side of the isolation
barrier. Opposing-direction channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on opposing sides
of the isolation barrier.
Table 2.
Parameter Symbol
1 Mbps—A, B, C,
WA, WB, WC Grades
25 Mbps—B, C,
WB, WC Grades
100 Mbps—C,
WC Grades
Unit Test Conditions Min Typ Max Min Typ Max Min Typ Max
SUPPLY CURRENT No load
ADuM1280/ADuM1285 I
DD1
1.1 1.6 6.2 7.0 20 25 mA
I
DD2
2.7
4.5
4.8
7.0
9.5
15
mA
ADuM1281/ADuM1286 I
DD1
2.1 2.6 4.9 6.0 15 19 mA
I
DD2
2.3 2.9 4.7 6.4 15.6 19 mA
Table 3. For All Models
Parameter Symbol Min Typ Max Unit Test Conditions
DC SPECIFICATIONS
Logic High Input Threshold V
IH
0.7 V
DDx
V
Logic Low Input Threshold V
IL
0.3 V
DDx
V
Logic High Output Voltages
V
OH
V
DDx
− 0.1
5.0
V
I
Ox
= −20 µA, V
Ix
= V
IxH
V
DDx
− 0.4 4.8 V I
Ox
= −3.2 mA, V
Ix
= V
IxH
Logic Low Output Voltages V
OL
0.0 0.1 V I
Ox
= 20 µA, V
Ix
= V
IxL
0.2 0.4 V I
Ox
= 3.2 mA, V
Ix
= V
IxL
Input Current per Channel I
I
−10 +0.01 +10 µA 0 V ≤ V
Ix
≤ V
DDx
Supply Current per Channel
Quiescent Input Supply Current I
DDI(Q)
0.54 0.8 mA
Quiescent Output Supply Current I
DDO(Q)
1.6 2.0 mA
Dynamic Input Supply Current I
DDI(D)
0.09 mA/Mbps
Dynamic Output Supply Current I
DDO(D)
0.04 mA/Mbps
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

ADUM1280BRZ-RL7

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Manufacturer:
Analog Devices Inc.
Description:
Digital Isolators 3kV RMS Default High Dual-CH
Lifecycle:
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