1 kV RMS Quad-Channel Digital Isolators Data Sheet ADuM7440/ADuM7441/ADuM7442 FEATURES GENERAL DESCRIPTION 1 Small, 16-lead QSOP The ADuM7440/ADuM7441/ADuM7442 are 4-channel digital 1000 V rms isolation rating isolators based on the Analog Devices, Inc., iCoupler technology. Safety and regulatory approvals Combining high speed CMOS and monolithic air core transformer UL recognition technologies, these isolation components provide outstanding UL 1577: 1000 V rms for 1 minute performance characteristics superior to the alternatives, such as Low power operation optocoupler devices and other integrated couplers. 5 V operation The ADuM7440/ADuM7441/ADuM7442 family of quad 1 kV 2.25 mA per channel maximum at 0 Mbps to 1 Mbps digital isolation devices is packaged in a small 16-lead QSOP. 11.5 mA per channel maximum at 25 Mbps While most 4-channel isolators come in 16-lead wide SOIC 3.3 V operation packages, the ADuM7440/ADuM7441/ADuM7442 free almost 1.5 mA per channel maximum at 0 Mbps to 1 Mbps 70% of board space and yet can still withstand high isolation 8.25 mA per channel maximum at 25 Mbps voltage and meet UL regulatory requirements. In addition to the Bidirectional communication space savings, the ADuM7440/ADuM7441/ADuM7442 offer a Up to 25 Mbps data rate (NRZ) lower price than 2.5 kV or 5 kV isolators where only functional 3 V/5 V level translation isolation is needed. High temperature operation: 105C This family, like many Analog Devices isolators, offers very low High common-mode transient immunity: >15 kV/s power consumption, consuming one-tenth to one-sixth the APPLICATIONS power of comparable isolators at comparable data rates up to General-purpose, multichannel isolation 25 Mbps. Despite the low power consumption, all models of the SPI interface/data converter isolation ADuM7440/ADuM7441/ADuM7442 provide low pulse width RS-232/RS-422/RS-485 transceivers distortion (<5 ns for C grade). In addition, every model has an Industrial field bus isolation input glitch filter to protect against extraneous noise disturbances. The ADuM7440/ADuM7441/ADuM7442 isolators provide four independent isolation channels in a variety of channel configurations and two data rates (see the Ordering Guide) up to 25 Mbps. All models operate 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. All products also have an output default high logic state in the absence of the input power. 1 Protected by U.S. Patents 5,952,849, 6,873,065 and 7,075,329. Other patents pending. FUNCTIONAL BLOCK DIAGRAMS 1 16 V 1 16 V V 1 16 V V V DD1A DD2A DD1A DD2A DD1A DD2A ADuM7440 ADuM7441 ADuM7442 2 15 GND 2 15 GND GND 2 15 GND GND GND 1 2 1 2 1 2 3 14 3 14 3 14 V ENCODE DECODE V V ENCODE DECODE V V ENCODE DECODE V IA OA IA OA IA OA V 4 13 V 4 13 V 4 13 ENCODE DECODE V IB ENCODE DECODE V IB ENCODE DECODE V IB OB OB OB 5 12 5 12 V 5 ENCODE DECODE 12 V V ENCODE DECODE V V DECODE ENCODE V IC OC IC OC OC IC V 6 ENCODE DECODE 11 V V 6 DECODE ENCODE 11 V V 6 DECODE ENCODE 11 V ID OD OD ID OD ID V 7 10 V V 7 10 V V 7 10 V DD1B DD2B DD1B DD2B DD1B DD2B GND 8 9 GND GND 8 9 GND GND 8 9 GND 1 2 1 2 1 2 Figure 1. ADuM7440 Figure 2. ADuM7441 Figure 3. ADuM7442 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 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 20092015 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. 08340-001 08340-002 08340-003ADuM7440/ADuM7441/ADuM7442 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Recommended Operating Conditions .......................................7 Applications ....................................................................................... 1 Absolute Maximum Ratings ............................................................8 General Description ......................................................................... 1 ESD Caution...................................................................................8 Functional Block Diagrams ............................................................. 1 Pin Configurations and Function Descriptions ............................9 Revision History ............................................................................... 2 Typical Performance Characteristics ........................................... 12 Specif icat ions ..................................................................................... 3 Applications Information .............................................................. 14 Electrical Characteristics5 V Operation................................ 3 PC Board Layout ........................................................................ 14 Electrical Characteristics3.3 V Operation ............................ 4 Propagation Delay-Related Parameters ................................... 14 Electrical CharacteristicsMixed 5 V/3.3 V Operation ........ 5 DC Correctness and Magnetic Field Immunity ........................... 14 Electrical CharacteristicsMixed 3.3 V/5 V Operation ........ 6 Power Consumption .................................................................. 15 Package Characteristics ............................................................... 7 Insulation Lifetime ..................................................................... 15 Regulatory Information ............................................................... 7 Outline Dimensions ....................................................................... 17 Insulation and Safety-Related Specifications ............................ 7 Ordering Guide .......................................................................... 17 REVISION HISTORY 10/15Rev. C to Rev. D 8/10Rev. 0 to Rev. A Change to Features Section and General Description Section ........ 1 Change to Features ............................................................................ 1 Changes to Table 14 .......................................................................... 7 Changes to Table 1 ............................................................................. 3 Updated Outline Dimensions ....................................................... 17 Added Note 1, Table 1 ....................................................................... 3 Changes to Table 4 ............................................................................. 4 2/12Rev. B to Rev. C Added Note 1, Table 4 ....................................................................... 4 Created Hyperlink for Safety and Regulatory Approvals Changes to Table 7 ............................................................................. 5 Entry in Features Section ................................................................. 1 Added Note 1, Table 7 ....................................................................... 5 Change to PC Board Layout Section ............................................ 14 Changes to Table 10 .......................................................................... 6 Added Note 1, Table 10 ..................................................................... 6 2/11Rev. A to Rev. B Changes to Table 14 .......................................................................... 7 Changes to Figure 7 ........................................................................ 11 10/09Revision 0: Initial Version Rev. D Page 2 of 20