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ADUM1400 Datasheet(PDF) 1 Page - Analog Devices |
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ADUM1400 Datasheet(HTML) 1 Page - Analog Devices |
1 / 32 page Quad-Channel Digital Isolators Data Sheet ADuM1400/ADuM1401/ADuM1402 Rev. H Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2003–2012 Analog Devices, Inc. All rights reserved. FEATURES Qualified for automotive applications Low power operation 5 V operation 1.0 mA per channel maximum @ 0 Mbps to 2 Mbps 3.5 mA per channel maximum @ 10 Mbps 31 mA per channel maximum @ 90 Mbps 3 V operation 0.7 mA per channel maximum @ 0 Mbps to 2 Mbps 2.1 mA per channel maximum @ 10 Mbps 20 mA per channel maximum @ 90 Mbps Bidirectional communication 3 V/5 V level translation High temperature operation: 125°C High data rate: dc to 90 Mbps (NRZ) Precise timing characteristics 2 ns maximum pulse width distortion 2 ns maximum channel-to-channel matching High common-mode transient immunity: >25 kV/μs Output enable function 16-lead SOIC wide body package RoHS-compliant models available Safety and regulatory approvals UL recognition: 2500 V rms for 1 minute per UL 1577 CSA Component Acceptance Notice #5A VDE Certificate of Conformity DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 VIORM = 560 V peak TÜV approval: IEC/EN/UL/CSA 61010-1 APPLICATIONS General-purpose multichannel isolation SPI interface/data converter isolation RS-232/RS-422/RS-485 transceivers Industrial field bus isolation Automotive systems GENERAL DESCRIPTION The ADuM140x1 are quad-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 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. The typical optocoupler concerns regarding uncertain current transfer ratios, nonlinear transfer functions, and 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 consume one-tenth to one-sixth of the power of optocouplers at comparable signal data rates. The ADuM140x isolators provide four independent isolation channels in a variety of channel configurations and data rates (see the Ordering Guide). All models operate with the supply voltage on either side ranging from 2.7 V to 5.5 V, providing compatibility with lower voltage systems as well as enabling a voltage translation functionality across the isolation barrier. In addition, the ADuM140x provides low pulse width distortion (<2 ns for CRW grade) and tight channel-to-channel matching (<2 ns for CRW grade). Unlike other optocoupler alternatives, the ADuM140x isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions and when power is not applied to one of the supplies. 1 Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. FUNCTIONAL BLOCK DIAGRAMS ENCODE DECODE ENCODE DECODE ENCODE DECODE ENCODE DECODE VDD1 GND1 VIA VIB VIC VID NC GND1 VDD2 GND2 VOA VOB VOC VOD VE2 GND2 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 Figure 1. ADuM1400 DECODE ENCODE ENCODE DECODE ENCODE DECODE ENCODE DECODE VDD1 GND1 VIA VIB VIC VOD VE1 GND1 VDD2 GND2 VOA VOB VOC VID VE2 GND2 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 Figure 2. ADuM1401 DECODE ENCODE DECODE ENCODE ENCODE DECODE ENCODE DECODE VDD1 GND1 VIA VIB VOC VOD VE1 GND1 VDD2 GND2 VOA VOB VIC VID VE2 GND2 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 Figure 3. ADuM1402 |
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