The ADuM3480/ADuM3481/ADuM3482 are quad-channel digital isolators based on the 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 and other integrated couplers. With typical propagation delay reduced to 25 ns, pulse width distortion is also halved.
The four channels of the ADuM3480/ADuM3481/ADuM3482 are available in a variety of channel configurations with two data rate grades up to 25 Mbps (see the Ordering Guide section). All models use separate core and I/O power supplies. The core operates between 3.0 V and 5.5 V, whereas the I/O supply can range from 1.8 V to 5.5 V. If operation is required within the range of the core supply, the two supplies can be tied together to allow single-supply operation. When the I/O must interface with logic levels that are different from the core supply voltage, then the I/O supply can be operated independently of the core supply over a wider range. The minimum I/O supply voltage is 1.8 V, allowing compatibility with low voltage logic. Both core and I/O supplies are required for proper operation.
|Title||Content Type||File Type|
|ADuM3480/ADuM3481/ADuM3482: Small, 3.75 kV RMS Quad Digital Isolators Data Sheet (Rev A, 06/2014) (pdf, 332 kB)||Data Sheets|
|CN0328: Completely Isolated 4-Channel Multiplexed HART Analog Output Circuit (pdf, 828 kB)||Circuit Note|
|CN-0321: Fully Isolated, Single Channel Voltage and 4 mA to 20 mA Output with HART Connectivity (pdf, 282 kB)||Circuit Note|
ADuM348x: First Isolator to Interface to 1.8V I/O
Learn how the ADuM348x family of iCoupler® digital isolators are the first isolators capable of directly interfacing to 1.8V I/O. This benefit results in reduced board space, power consumption and cost savings over optocoupler solutions.
|UG-546: Evaluating the iCoupler ADuM3480/ADuM3481/ADuM3482 Quad-Channel Digital Isolators (pdf, 352 kB)||User Guides|
|Analog Devices Achieves Major Milestone by Shipping 1 Billionth Channel of iCoupler Digital Isolation (19 Sep 2013)||Press Releases||HTML|
|Digital Isolator Product Selection and Resource Guide (pdf, 640 kB)||Product Selection Guide|
|Glossary of EE Terms||Glossary||HTML|
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.