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Quad-Channel, Digital Isolators,

Enhanced System-Level ESD Reliability

Data Sheet

ADuM3400/ADuM3401/ADuM3402

Rev. D Document Feedback

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FEATURES

Enhanced system-level ESD performance per IEC 61000-4-x

Low power operation

5 V operation

1.4 mA per channel maximum at 0 Mbps to 2 Mbps

4.3 mA per channel maximum at 10 Mbps

34 mA per channel maximum at 90 Mbps

3 V operation

0.9 mA per channel maximum at 0 Mbps to 2 Mbps

2.4 mA per channel maximum at 10 Mbps

20 mA per channel maximum at 90 Mbps

Bidirectional communication

3 V/5 V level translation

High temperature operation: 105°C

High data rate: dc to 90 Mbps (NRZ)

Precise timing characteristics

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, RoHS-compliant 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

IORM

= 560 V peak

APPLICATIONS

General-purpose multichannel isolation

SPI/data converter isolation

RS-232/RS-422/RS-485 transceivers

Industrial field bus isolation

GENERAL DESCRIPTION

The ADuM3400/ADuM3401/ADuM3402

are 4-channel digital

isolators based on the Analog Devices, Inc., iCoupler® technol-

ogy. Combining high speed CMOS and monolithic air core

transformer technology, these isolation components provide

outstanding performance 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. Further-

more, iCoupler devices consume one-tenth to one-sixth the

power of optocouplers at comparable signal data rates.

The isolators provide four 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

isolators have a patented refresh feature that ensures dc correctness

in the absence of input logic transitions and during power-

up/power-down conditions.

In comparison to the ADuM1400/ADuM1401/ADuM1402

isolators, the ADuM3400/ADuM3401/ADuM3402 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 set of

isolators is strongly determined by the design and layout of the

user’s board or module. For more information, see the AN-793

Application Note, ESD/Latch-Up Considerations with iCoupler

Isolation Products.

FUNCTIONAL BLOCK DIAGRAMS

ENCODE DECODE

DD1

GND

DD2

GND

05985-001

Figure 1. ADuM3400 Functional Block Diagram

DECODE ENCODE

ENCODE DECODE

DD1

GND

DD2

GND

05985-002

Figure 2. ADuM3401 Functional Block Diagram

DECODE ENCODE

ENCODE DECODE

DD1

GND

DD2

GND

05985-003

Figure 3. ADuM3402 Functional Block Diagram

Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329.

Summary of content (24 pages)

PAGE 1
Quad-Channel, Digital Isolators, Enhanced System-Level ESD Reliability ADuM3400/ADuM3401/ADuM3402 Data Sheet FEATURES GENERAL DESCRIPTION Enhanced system-level ESD performance per IEC 61000-4-x Low power operation 5 V operation 1.4 mA per channel maximum at 0 Mbps to 2 Mbps 4.3 mA per channel maximum at 10 Mbps 34 mA per channel maximum at 90 Mbps 3 V operation 0.9 mA per channel maximum at 0 Mbps to 2 Mbps 2.
PAGE 2
ADuM3400/ADuM3401/ADuM3402 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Absolute Maximum Ratings ......................................................... 14 Applications ....................................................................................... 1 ESD Caution................................................................................ 14 General Description ........................................
PAGE 3
Data Sheet ADuM3400/ADuM3401/ADuM3402 SPECIFICATIONS ELECTRICAL CHARACTERISTICS—5 V OPERATION All voltages are relative to their respective ground. 4.5 V ≤ VDD1 ≤ 5.5 V, 4.5 V ≤ VDD2 ≤ 5.5 V; all minimum/maximum specifications apply over the entire recommended operation range, unless otherwise noted; all typical specifications are at TA = 25°C, VDD1 = VDD2 = 5 V. Table 1.
PAGE 4
ADuM3400/ADuM3401/ADuM3402 Parameter SWITCHING SPECIFICATIONS ARW Package Minimum Pulse Width2 Maximum Data Rate3 Propagation Delay4 Pulse Width Distortion, |tPLH − tPHL|4 Propagation Delay Skew5 Channel-to-Channel Matching6 BRW Package Minimum Pulse Width2 Maximum Data Rate3 Propagation Delay4 Pulse Width Distortion, |tPLH − tPHL|4 Change vs.
PAGE 5
Data Sheet ADuM3400/ADuM3401/ADuM3402 The supply current values for all four channels are combined when running at identical data rates. Output supply current values are specified with no output load present. The supply current associated with an individual channel operating at a given data rate can be calculated as described in the Power Consumption section. See Figure 8 through Figure 10 for information on per-channel supply current as a function of data rate for unloaded and loaded conditions.
PAGE 6
ADuM3400/ADuM3401/ADuM3402 Data Sheet ELECTRICAL CHARACTERISTICS—3 V OPERATION All voltages are relative to their respective ground. 2.7 V ≤ VDD1 ≤ 3.6 V, 2.7 V ≤ VDD2 ≤ 3.6 V; all minimum/maximum specifications apply over the entire recommended operation range, unless otherwise noted; all typical specifications are at TA = 25°C, VDD1 = VDD2 = 3.0 V. Table 2.
PAGE 7
Data Sheet Parameter Pulse Width Distortion, |tPLH − tPHL|4 Propagation Delay Skew5 Channel-to-Channel Matching6 BRW Package Minimum Pulse Width2 Maximum Data Rate3 Propagation Delay4 Pulse Width Distortion, |tPLH − tPHL|4 Change vs. Temperature Propagation Delay Skew5 Channel-to-Channel Matching, Codirectional Channels6 Channel-to-Channel Matching, Opposing-Directional Channels6 CRW Package Minimum Pulse Width2 Maximum Data Rate3 Propagation Delay4 Pulse Width Distortion, |tPLH − tPHL|4 Change vs.
PAGE 8
ADuM3400/ADuM3401/ADuM3402 Data Sheet ELECTRICAL CHARACTERISTICS—MIXED 5 V/3 V OR 3 V/5 V OPERATION All voltages are relative to their respective ground. 5 V/3 V operation: 4.5 V ≤ VDD1 ≤ 5.5 V, 2.7 V ≤ VDD2 ≤ 3.6 V; 3 V/5 V operation: 2.7 V ≤ VDD1 ≤ 3.6 V, 4.5 V ≤ VDD2 ≤ 5.5 V; all minimum/maximum specifications apply over the entire recommended operation range, unless otherwise noted; all typical specifications are at TA = 25°C; VDD1 = 3.0 V, VDD2 = 5 V or VDD1 = 5 V, VDD2 = 3.0 V. Table 3.
PAGE 9
Data Sheet Parameter 90 Mbps (CRW Grade Only) VDD1 Supply Current 5 V/3 V Operation 3 V/5 V Operation VDD2 Supply Current 5 V/3 V Operation 3 V/5 V Operation ADuM3402, Total Supply Current, Four Channels1 DC to 2 Mbps VDD1 Supply Current 5 V/3 V Operation 3 V/5 V Operation VDD2 Supply Current 5 V/3 V Operation 3 V/5 V Operation 10 Mbps (BRW and CRW Grades Only) VDD1 Supply Current 5 V/3 V Operation 3 V/5 V Operation VDD2 Supply Current 5 V/3 V Operation 3 V/5 V Operation 90 Mbps (CRW Grade Only) VDD1 Supply
PAGE 10
ADuM3400/ADuM3401/ADuM3402 Parameter BRW Package Minimum Pulse Width2 Maximum Data Rate3 Propagation Delay4 Pulse Width Distortion, |tPLH − tPHL|4 Change vs. Temperature Propagation Delay Skew5 Channel-to-Channel Matching, Codirectional Channels6 Channel-to-Channel Matching, Opposing-Directional Channels6 CRW Package Minimum Pulse Width2 Maximum Data Rate3 Propagation Delay4 Pulse Width Distortion, |tPLH − tPHL|4 Change vs.
PAGE 11
Data Sheet ADuM3400/ADuM3401/ADuM3402 The supply current values for all four channels are combined when running at identical data rates. Output supply current values are specified with no output load present. The supply current associated with an individual channel operating at a given data rate can be calculated as described in the Power Consumption section. See Figure 8 through Figure 10 for information on per-channel supply current as a function of data rate for unloaded and loaded conditions.
PAGE 12
ADuM3400/ADuM3401/ADuM3402 Data Sheet PACKAGE CHARACTERISTICS Table 4. Parameter Resistance (Input-to-Output)1 Capacitance (Input-to-Output)1 Input Capacitance2 IC Junction-to-Case Thermal Resistance, Side 1 IC Junction-to-Case Thermal Resistance, Side 2 1 2 Symbol RI-O CI-O CI θJCI θJCO Min Typ 1012 2.2 4.
PAGE 13
Data Sheet ADuM3400/ADuM3401/ADuM3402 DIN V VDE V 0884-10 (VDE V 0884-10) INSULATION CHARACTERISTICS These isolators are suitable for reinforced electrical isolation only within the safety limit data. Maintenance of the safety data is ensured by protective circuits. The * marking on packages denotes DIN V VDE V 0884-10 approval. Table 7.
PAGE 14
ADuM3400/ADuM3401/ADuM3402 Data Sheet ABSOLUTE MAXIMUM RATINGS Ambient temperature = 25°C, unless otherwise noted. Table 9. Parameter Storage Temperature Range (TST) Ambient Operating Temperature Range (TA) Supply Voltages (VDD1, VDD2)1 Input Voltage (VIA, VIB, VIC, VID, VE1, VE2)1, 2 Output Voltage (VOA, VOB, VOC, VOD)1, 2 Average Output Current per Pin3 Side 1 (IO1) Side 2 (IO2) Common-Mode Transients (CMH, CML)4 Rating −65°C to +150°C −40°C to +105°C −0.5 V to +7.0 V −0.5 V to VDD1 + 0.5 V −0.
PAGE 15
Data Sheet ADuM3400/ADuM3401/ADuM3402 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS 16 VDD2 VDD1 1 15 GND2* VIA 3 ADuM3400 VIB 4 TOP VIEW (Not to Scale) VIC 5 14 VOA 13 VOB 12 VOC VID 6 11 VOD NC 7 10 VE2 *GND1 8 9 GND2* NC = NO CONNECT 05985-005 *GND1 2 *PIN 2 AND PIN 8 ARE INTERNALLY CONNECTED AND CONNECTING BOTH TO GND1 IS RECOMMENDED. PIN 9 AND PIN 15 ARE INTERNALLY CONNECTED AND CONNECTING BOTH TO GND2 IS RECOMMENDED.
PAGE 16
ADuM3400/ADuM3401/ADuM3402 Data Sheet 16 VDD2 VDD1 1 15 GND2* VIA 3 ADuM3401 VIB 4 TOP VIEW (Not to Scale) VIC 5 14 VOA 13 VOB 12 VOC VOD 6 11 VID VE1 7 10 VE2 *GND1 8 9 GND2* 05985-006 *GND1 2 *PIN 2 AND PIN 8 ARE INTERNALLY CONNECTED AND CONNECTING BOTH TO GND1 IS RECOMMENDED. PIN 9 AND PIN 15 ARE INTERNALLY CONNECTED AND CONNECTING BOTH TO GND2 IS RECOMMENDED.
PAGE 17
ADuM3400/ADuM3401/ADuM3402 VDD1 1 16 VDD2 *GND1 2 15 GND2* VIA 3 ADuM3402 14 VOA VIB 4 TOP VIEW (Not to Scale) 13 VOB 12 VIC VOD 6 11 VID VE1 7 10 VE2 *GND1 8 9 GND2* VOC 5 05985-007 Data Sheet *PIN 2 AND PIN 8 ARE INTERNALLY CONNECTED AND CONNECTING BOTH TO GND1 IS RECOMMENDED. PIN 9 AND PIN 15 ARE INTERNALLY CONNECTED AND CONNECTING BOTH TO GND2 IS RECOMMENDED.
PAGE 18
ADuM3400/ADuM3401/ADuM3402 Data Sheet 80 15 60 CURRENT (mA) 20 5V 10 3V 5V 3V 0 20 40 60 DATA RATE (Mbps) 80 100 0 0 Figure 8. Typical Input Supply Current per Channel vs. Data Rate (No Load) 60 40 DATA RATE (Mbps) 15 60 CURRENT (mA) 80 100 40 20 5 5V 5V 20 40 60 DATA RATE (Mbps) 80 100 05985-009 0 0 0 Figure 9. Typical Output Supply Current per Channel vs. Data Rate (No Load) 15 60 CURRENT (mA) 80 5V 40 60 DATA RATE (Mbps) 80 100 Figure 12.
PAGE 19
Data Sheet ADuM3400/ADuM3401/ADuM3402 40 80 PROPAGATION DELAY (ns) CURRENT (mA) 60 40 5V 20 3V 35 30 5V 0 20 40 60 DATA RATE (Mbps) 80 100 Figure 14. Typical ADuM3401 VDD2 Supply Current vs. Data Rate for 5 V and 3 V Operation CURRENT (mA) 60 40 5V 20 20 40 60 DATA RATE (Mbps) 80 100 05985-015 3V 0 –25 25 0 50 TEMPERATURE (°C) 75 Figure 16. Propagation Delay vs. Temperature, C Grade 80 0 25 –50 Figure 15. Typical ADuM3402 VDD1 or VDD2 Supply Current vs.
PAGE 20
ADuM3400/ADuM3401/ADuM3402 Data Sheet APPLICATION INFORMATION The ADuM3400/ADuM3401/ADuM3402 digital isolators require no external interface circuitry for the logic interfaces. Power supply bypassing is strongly recommended at the input and output supply pins (see Figure 17). Bypass capacitors are most conveniently connected between Pin 1 and Pin 2 for VDD1 and between Pin 15 and Pin 16 for VDD2. The capacitor value should be between 0.01 μF and 0.1 μF.
PAGE 21
Data Sheet ADuM3400/ADuM3401/ADuM3402 where: β is magnetic flux density (gauss). N is the number of turns in the receiving coil. rn is the radius of the nth turn in the receiving coil (cm). Given the geometry of the receiving coil in the ADuM3400/ ADuM3401/ADuM3402 and an imposed requirement that the induced voltage be at most 50% of the 0.5 V margin at the decoder, a maximum allowable magnetic field is calculated as shown in Figure 19.
PAGE 22
ADuM3400/ADuM3401/ADuM3402 Data Sheet To calculate the total IDD1 and IDD2 supply current, the supply currents for each input and output channel corresponding to VDD1 and VDD2 are calculated and totaled. Figure 8 provides the per-channel input supply current as a function of the data rate. Figure 9 and Figure 10 provide the per-channel supply output current as a function of the data rate for an unloaded output condition and for a 15 pF output condition, respectively.
PAGE 23
Data Sheet ADuM3400/ADuM3401/ADuM3402 OUTLINE DIMENSIONS 10.50 (0.4134) 10.10 (0.3976) 9 16 7.60 (0.2992) 7.40 (0.2913) 8 1.27 (0.0500) BSC 0.30 (0.0118) 0.10 (0.0039) COPLANARITY 0.10 0.51 (0.0201) 0.31 (0.0122) 10.65 (0.4193) 10.00 (0.3937) 0.75 (0.0295) 45° 0.25 (0.0098) 2.65 (0.1043) 2.35 (0.0925) SEATING PLANE 8° 0° 1.27 (0.0500) 0.40 (0.0157) 0.33 (0.0130) 0.20 (0.
PAGE 24
ADuM3400/ADuM3401/ADuM3402 Data Sheet NOTES ©2006–2015 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05985-0-7/15(D) Rev.