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Data Sheet
FEATURES
Dual-Channel Digital Isolators, 5 kV ADuM2210/ADuM2211
FUNCTIONAL BLOCK DIAGRAMS
GND1 NC VDD1 VIA VIB NC GND1 NC
1 2 3 4 5 6 7 8 ENCODE ENCODE DECODE DECODE PIN 1 INDICATOR
High isolation voltage: 5000 V rms Enhanced system-level ESD performance per IEC 61000-4-x Low power operation 5 V operation 1.6 mA per channel maximum at 0 Mbps to 2 Mbps 3.7 mA per channel maximum at 10 Mbps 3 V operation 1.4 mA per channel maximum at 0 Mbps to 2 Mbps 2.4 mA per channel maximum at 10 Mbps Bidirectional communication 3 V/5 V level translation High temperature operation: 125°C Default low output High data rate: dc to 10 Mbps (NRZ) Precise timing characteristics 3 ns maximum pulse width distortion 3 ns maximum channel-to-channel matching High common-mode transient immunity: >25 kV/μs 16-lead SOIC wide body package version (RW-16) 16-lead SOIC wide body enhanced creepage version (RI-16) Safety and regulatory approvals (RI-16 package) UL recognition: 5000 V rms for 1 minute per UL 1577 CSA Component Acceptance Notice #5A IEC 60601-1: 250 V rms (reinforced) IEC 60950-1: 400 V rms (reinforced) VDE Certificate of Conformity DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 VIORM = 846 V peak
ADuM2210
16 GND2 15 NC 14 VDD2 13 V OA 12 VOB 11 NC 10 NC 9
GND2
NC = NO CONNECT
Figure 1. ADuM2210
GND1 NC VDD1 VOA VIB NC GND1 NC
1 2 3 4 5 6 7 8 DECODE ENCODE ENCODE DECODE PIN 1 INDICATOR
ADuM2211
16 GND2 15 NC 14 VDD2 13 V IA 12 VOB 11 NC 10 NC 9
GND2
NC = NO CONNECT
Figure 2. ADuM2211
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. Furthermore, iCoupler devices run at one-tenth to one-sixth the power of optocouplers at comparable signal data rates. The ADuM221x isolators provide two independent isolation channels in a variety of channel configurations and data rates (see the Ordering Guide). The ADuM221x models operate with the supply voltage of 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. The ADuM221x isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions. Similar to the ADuM320x isolators, the ADuM221x isolators contain various circuit and layout enhancements to provide increased capability relative to system-level IEC 61000-4-x testing (ESD, burst, and surge). The precise capability in these tests for either the ADuM320x or ADuM221x products 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.
APPLICATIONS
General-purpose, high voltage, multichannel isolation Medical equipment Power supplies RS-232/RS-422/RS-485 transceiver isolation
GENERAL DESCRIPTION
The ADuM221x1 are 2-channel digital isolators based on Analog Devices, Inc., iCoupler® technology. Combining high speed CMOS and monolithic air core transformer technology, these isolation components provide outstanding performance characteristics that are superior to alternatives such as optocoupler devices. By avoiding the use of LEDs and photodiodes, iCoupler devices remove the design difficulties commonly associated with optocouplers. Typical optocoupler concerns regarding uncertain current transfer ratios, nonlinear transfer functions, and
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Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents pending. Rev. A
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ADuM2210/ADuM2211 TABLE OF CONTENTS
Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagrams............................................................. 1 Revision History .................................................................