ADUM2210: Dual-Channel Digital Isolators, 5 kV 0 pages

Dual-Channel Digital Isolators, 5 kV
ADuM2210/ADuM2211
Rev. 0
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FEATURES
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/ìs
16-lead SOIC wide body package (RoHS-compliant)
Safety and regulatory approvals (pending)
UL recognition: 5000 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice #5A
IEC 60950-1: 600 V rms (reinforced)
IEC 60601-1: 250 V rms (reinforced)
VDE certificate of conformity
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
VIORM = 846 V peak
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 opto-couplers. Typical optocoupler concerns regarding uncertain current transfer ratios, nonlinear transfer functions, and temper-ature and lifetime effects are eliminated with the simple iCoupler digital interfaces and stable performance characteristics. The
FUNCTIONAL BLOCK DIAGRAMS 12345678GND1NCVDD1VIAVIBNCGND1NCGND2NCVDD2VOAVOBNCNCGND2NC = NO CONNECTADuM2210161514131211109ENCODEENCODEDECODEDECODEPIN 1INDICATOR09233-001
Figure 1. ADuM2210 12345678GND1NCVDD1VOAVIBNCGND1NCGND2NCVDD2VIAVOBNCNCGND2NC = NO CONNECTADuM2211161514131211109DECODEENCODEENCODEDECODEPIN 1INDICATOR09233-002
Figure 2. ADuM2211
need for external drivers and other discrete components is elimi-nated 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 transi-tions 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.
1 Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents pending.