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ADUM2401ARWZ Datasheet(PDF) 1 Page - Analog Devices |
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ADUM2401ARWZ Datasheet(HTML) 1 Page - Analog Devices |
1 / 23 page Quad-Channel Digital Isolators, 5KV Preliminary Technical Data ADuM2400/ADuM2401/ADuM2402 Rev. PrD October 5, 2004 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 rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved. FEATURES Low power operation 5 V operation: 1.0 mA per channel max @ 0–2 Mbps 3.5 mA per channel max @ 10 Mbps 31 mA per channel max @ 90 Mbps 3 V operation: 0.7 mA per channel max @ 0–2 Mbps 2.1 mA per channel max @ 10 Mbps 20 mA per channel max @ 90 Mbps Bidirectional communication 3 V/5 V level translation High temperature operation: 105°C High data rate: DC–90 Mbps (NRZ) Precise timing characteristics: 2 ns max. pulsewidth distortion 2 ns max. channel-to-channel matching High common-mode transient immunity: > 25 kV/μs Output enable function Wide body SOIC 16-lead package Safety and regulatory approvals (pending) UL recognition: 5000 V rms for 1 minute per UL 1577 CSA component acceptance notice #5A VDE certificate of conformity DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01 DIN EN 60950 (VDE 0805):2001-12;EN 60950:2000 VIORM = 848 V peak IEC 60601-1 APPLICATIONS General-purpose, high voltage, multichannel isolation Medical Equipment Motor Drives Power Supplies GENERAL DESCRIPTION The ADuM240x are four-channel digital isolators based on Analog Devices’ 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. In comparison to the 2.5KV ADuM140x product family, ADuM240x models have increased insulation thickness to achieve the higher 5.0KV isolation rating. By avoiding the use of LEDs and photodiodes, iCoupler devices remove the design difficulties commonly associated with optocouplers. 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 discretes is eliminated with these iCoupler products. Furthermore, iCoupler devices run at one-tenth to one-sixth the power consumption of optocouplers at comparable signal data rates. The ADuM240x isolators provide four independent isolation channels in a variety of channel configurations and data rates (see Ordering Guide). All ADuM240x models operate with the supply voltage of 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 ADuM240x provides low pulse width distortion (<2 ns for CRWZ grade), and tight channel-to-channel matching (<2 ns for CRWZ grade). Unlike other optocoupler alternatives, the ADuM240x isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions. 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. ADuM2400 Functional Block Diagram Vdd1 1 Vdd2 16 GND1 2 GND2 15 VE1 7 VE2 10 GND1 8 GND2 9 DECODE ENCODE 3 14 VIA VOA DECODE ENCODE 4 13 VIB VOB VIC 5 VOC DECODE ENCODE 6 11 VOD VID ENCODE DECODE 12 Figure 2. ADuM2401 Functional Block Diagram DECODE DECODE ENCODE 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. ADuM2402 Functional Block Diagram |
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