1 kV, Dual Channel Digital Isolators Data Sheet ADuM7240/ADuM7241 FEATURES FUNCTIONAL BLOCK DIAGRAMS Narrow-body, RoHS-compliant, 8-lead SOIC ADuM7240 V 1 8 V DD1 DD2 Safety and regulatory approvals UL recognition 2 ENCODE DECODE 7 V V IA OA UL 1577: 1000 V rms for 1 minute V 3 ENCODE DECODE 6 V IB OB Low power operation 5 V operation GND 4 5 GND 1 2 2.4 mA per channel maximum at 0 Mbps to 1 Mbps Figure 1. ADuM7240 11.8 mA per channel maximum at 25 Mbps 3.3 V operation 1.7 mA per channel maximum at 0 Mbps to 1 Mbps ADuM7241 8.2 mA per channel maximum at 25 Mbps V 1 8 V DD1 DD2 Bidirectional communication 2 DECODE ENCODE 7 V V OA IA Up to 25 Mbps data rate (NRZ) 3 V/5 V level translation V 3 ENCODE DECODE 6 V IB OB High temperature operation: 105C 4 5 GND GND 1 2 High common-mode transient immunity: >15 kV/s Figure 2. ADuM7241 APPLICATIONS General-purpose multichannel isolation Data converter isolation Industrial field bus isolation GENERAL DESCRIPTION 1 The ADuM7240/ADuM7241 are dual channel digital isolators ADuM7240/ADuM7241 provide low pulse width distortion based on the Analog Devices, Inc., iCoupler technology. (<5 ns for C grade). In addition, every model has an input glitch Combining high speed CMOS and monolithic air core trans- filter to protect against extraneous noise disturbances. former technologies, these isolation components provide The ADuM7240/ADuM7241 provide two independent isolation outstanding performance characteristics superior to the alterna- channels and are available in two channel configurations with tives, such as optocoupler devices and other integrated couplers. 1 Mbps or 25 Mbps data rates (see the Ordering Guide). All The ADuM7240/ADuM7241 dual 1 kV digital isolation devices models operate with the supply voltage on either side ranging are packaged in a narrow-body 8-lead SOIC. The ADuM7240/ from 3.0 V to 5.5 V, providing compatibility with lower voltage ADuM7241 offer a cost-effective option compared to 2.5 kV or systems as well as enabling voltage translation functionality 5 kV isolators where only functional isolation is needed. across the isolation barrier. The ADuM7240/ADuM7241 also have an output default high logic state in the absence of input Like other Analog Devices isolators, the ADuM7240/ADuM7241 power. offer very low power consumption, consuming one-tenth to one-sixth the power of comparable isolators at data rates up to 25 Mbps. Despite the low power consumption, all models of the 1 Protected by U.S. Patents 5,952,849 6,873,065 and 7,075,329. Other patents pending. Rev. B 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 20122015 Analog Devices, Inc. All rights reserved. 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. Technical Support www.analog.com 10240-002 10240-001ADuM7240/ADuM7241 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Absolute Maximum Ratings ............................................................8 Applications ....................................................................................... 1 ESD Caution...................................................................................8 Functional Block Diagrams ............................................................. 1 Pin Configurations and Function Descriptions ............................9 General Description ......................................................................... 1 Typical Performance Characteristics ........................................... 10 Revision History ............................................................................... 2 Applications Information .............................................................. 12 Specifications ..................................................................................... 3 Printed Circuit Board Layout ................................................... 12 Electrical Characteristics5 V Operation................................ 3 Propagation Delay-Related Parameters ................................... 12 Electrical Characteristics3.3 V Operation ............................ 4 DC Correctness .......................................................................... 12 Electrical CharacteristicsMixed 5 V/3.3 V Operation ........ 5 Magnetic Field Immunity.......................................................... 12 Electrical CharacteristicsMixed 3.3 V/5 V Operation ........ 6 Power Consumption .................................................................. 13 Package Characteristics ............................................................... 7 Insulation Lifetime ..................................................................... 13 Regulatory Information ............................................................... 7 Outline Dimensions ....................................................................... 14 Insulation and Safety-Related Specifications ............................ 7 Ordering Guide .......................................................................... 14 Recommended Operating Conditions ...................................... 7 REVISION HISTORY 10/15Rev. A to Rev. B Change to Features Section ............................................................. 1 Changes to Table 14 .......................................................................... 7 5/12Rev. 0 to Rev. A Changes to Table 2 ............................................................................ 3 Changed I Maximum Parameter from 1.2 mA to 1.4 mA, DDI(Q) Table 3, and I Maximum Parameter from 0.95 mA to DDO(Q) 1.1 mA, Table 3 ................................................................................. 3 Changes to Table 5 ............................................................................ 4 Changed I Maximum Parameter from 0.83 mA to 1.0 mA, DDI(Q) Table 6, and Changed I Maximum Parameter from DDO(Q) 0.68 mA to 0.8 mA, Table 6 ............................................................. 4 Changes to Table 8 ............................................................................ 5 Changed I Maximum Parameter from 1.2 mA to 1.45 mA, DDI(Q) Table 9, and Changed I Maximum Parameter from DDO(Q) 0.67 mA to 0.80 mA, Table 9 ........................................................... 5 Changes to Table 11 .......................................................................... 6 Changed I Maximum Parameter from 0.83 mA to 1.0 mA, DDI(Q) Table 12, and Changed I Maximum Parameter from DDO(Q) 0.90 mA to 1.1 mA, Table 12 ........................................................... 6 5/12Revision 0: Initial Version Rev. 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