Micropower, Dual-Channel Digital Isolators Data Sheet ADuM1240/ADuM1241/ADuM1245/ADuM1246 FEATURES FUNCTIONAL BLOCK DIAGRAMS Ultralow power operation V 1 20 V DD1 ADuM124x DD2 3.3 V operation 2 GND 19 GND 1 2 5.6 A per channel quiescent current, refresh enabled NIC 3 18 NIC 0.3 A per channel quiescent current, refresh disabled NIC 4 17 NIC 148 A/Mbps per channel typical dynamic current 5 16 V /V ENCODE DECODE V /V IA OA OA IA 2.5 V operation V 6 15 V ENCODE DECODE IB OB 3.1 A per channel quiescent current, refresh enabled EN 7 14 EN 1 2 0.1 A per channel quiescent current, refresh disabled NIC 8 13 NIC 116 A/Mbps per channel typical dynamic current NIC 9 12 NIC Small, 20-lead SSOP package and small 8-lead SOIC package GND 10 11 GND 1 2 Bidirectional communication Figure 1. 20-Lead SSOP Package Functional Block Diagram Up to 2 Mbps data rate nonreturn to zero (NRZ) High temperature operation: 125C 1 8 V V DD1 ADuM124x DD2 High common-mode transient immunity: >25 kV/s V /V ENCODE DECODE V /V 2 7 IA OA OA IA Safety and Regulatory Approvals V 3 6 V IB OB ENCODE DECODE UL 1577 component recognition program 4 GND 5 GND 2 1 3750 V rms for 1 minute per UL 1577 (20-lead SSOP) 3000 V rms for 1 minute per UL 1577 (8-lead SOIC) Figure 2. 8-Lead SOIC Package Functional Block Diagram CSA Component Acceptance Notice 5A The ADuM1240/ADuM1241/ADuM1245/ADuM1246 are VDE certificate of conformity packaged in either a 20-lead SSOP for 3.75 kV reinforced DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12 isolation or an 8-lead SOIC for 3 kV basic isolation. The devices V = 849 V peak (20-lead SSOP) IORM meet regulatory requirements, such as UL and CSA standards. V = 560 V peak (8-lead SOIC) IORM In addition to the space saving package options, the ADuM1240/ APPLICATIONS ADuM1241/ADuM1245/ADuM1246 operate with supplies as General-purpose, low power, multichannel isolation low as 2.25 V. All models provide low, pulse width distortion at 1 MHz low power serial peripheral interface (SPI) <8 ns. In addition, every model has an input glitch filter to 4 mA to 20 mA loop process control protect against extraneous noise disturbances. 1000 GENERAL DESCRIPTION 1 The ADuM1240/ADuM1241/ADuM1245/ADuM1246 are micropower, 2-channel, digital isolators based on the Analog 100 Devices, Inc., iCoupler technology. Combining high speed, complementary metal oxide semiconductor (CMOS) and monolithic air core transformer technologies, these isolation 10 components provide outstanding performance characteristics EN = 0 x superior to the alternatives, such as optocoupler devices. The 20-lead SSOP version of the ADuM1240/ADuM1241/ EN = 1 x 1 ADuM1245/ADuM1246 allows control of the internal refresh functions. As shown in Figure 3, in standard operating mode, when ENx = 0 (internal refresh enabled), the current per channel is 0.1 less than 10 A. 0.1 1 10 100 1000 10000 DATA RATE (kbps) When EN = 1 (internal refresh disabled), the current per x Figure 3. Typical Total Supply Current (IDD1 + IDD2) per Channel (VDDx = channel drops to less than 1 A. 3.3 V) as a Function of Data Rate 1 Protected by U.S. Patents 5,952,849, 6,873,065, 7,075,329, 6,262,600. 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 20132016 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. TYPICAL TOTAL SUPPLY CURRENT PER CHANNEL (A) 11925-002 11925-102 11925-001ADuM1240/ADuM1241/ADuM1245/ADuM1246 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Absolute Maximum Ratings ..................................................... 10 Applications ....................................................................................... 1 Continuous Working Voltage ................................................... 10 General Description ......................................................................... 1 ESD Caution................................................................................ 10 Functional Block Diagrams ............................................................. 1 Pin Configurations and Function Descriptions ......................... 11 Revision History ............................................................................... 2 Truth Tables................................................................................. 13 Specifications ..................................................................................... 3 Typical Performance Characteristics ........................................... 14 Electrical Characteristics3.3 V Operation ............................ 3 Applications Information .............................................................. 17 Electrical Characteristics2.5 V Operation ............................ 4 PCB Layout ................................................................................. 17 Electrical CharacteristicsVDD1 = 3.3 V, VDD2 = 2.5 V Propagation Delay Related Parameters ................................... 17 Operation ....................................................................................... 6 DC Correctness and Low Power Operation ........................... 17 Electrical CharacteristicsVDD1 = 2.5 V, VDD2 = 3.3 V Magnetic Field Immunity.......................................................... 18 Operation ....................................................................................... 6 Power Consumption .................................................................. 19 Package Characteristics ............................................................... 7 Insulation Lifetime ..................................................................... 19 Regulatory Information ............................................................... 7 Packaging and Ordering Information .......Error Bookmark not Insulation and Safety Related Specifications ............................ 8 defined. DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12 Outline Dimensions ................................................................... 20 Insulation Characteristics ............................................................ 8 Ordering Guide .......................................................................... 20 Recommended Operating Conditions ...................................... 9 REVISION HISTORY 9/2016Rev. A to Rev. B Added Figure 5................................................................................ 11 Changes to Features Section............................................................ 1 Changes to Table 19 ....................................................................... 11 Changes to Regulatory Information Section and Table 12 ......... 7 Added Figure 7................................................................................ 12 Changes to Table 20 ....................................................................... 12 3/2014Rev. 0 to Rev. A Changes to Table 22 and Table 23 ....................................................... 13 Added 8-lead SOIC Package ............................................. Universal Changes to PCB Layout Section ............................................................. 17 Added Figure 28 ......................................................................................... 17 Changes to Features Section, General Description Section, and Figure 3 .............................................................................................. 1 Changes to Recommended Input Voltage for Low Power Deleted Product Highlights Section............................................... 1 Operation Section........................................................................... 18 Added Figure 2 Renumbered Sequentially .................................. 1 Added Figure 35, Outline Dimensions ........................................ 20 Changes to Table 12 .......................................................................... 7 Changes to Ordering Guide .......................................................... 21 Changes to Table 13 .......................................................................... 8 Added Table 14 Renumbered Sequentially .................................. 8 12/2013Revision 0: Initial Version Changed Case Temperature to Ambient Temperature, Figure 4 Caption ............................................................................... 9 Rev. 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