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ADUM3482:  Small, 3.75 kV RMS Quad Digital Isolators (2/2 Channel Directionality)

Product Details

Product Status:Recommended for New Designs

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.

APPLICATIONS

  • General-purpose multichannel isolation
  • SPI interface/data converter isolation
  • Industrial field bus isolation

FEATURES and BENEFITS

  • Up to 25 Mbps data rate (NRZ)
  • Low propagation delay:
    25 ns typical
  • Low dynamic power consumption
  • 1.8 V to 5 V level translation
  • High temperature operation: 125°C
  • High common-mode transient immunity:
    >25 kV/µs
  • Output default select
  • 20-lead, RoHS-compliant, SSOP package
  • See data sheet for additional features

Functional Block Diagram for ADuM3482

Video: ADUM348x First Isolator to Interface to 1.8V I/O

Support Community

Engineer Zone Interface and Isolation Community

Documentation

Title Content Type File Type
ADuM3480/ADuM3481/ADuM3482: Small, 3.75 kV RMS Quad Digital Isolators Data Sheet (Rev 0, 07/2012) (pdf, 332 kB) Data Sheets PDF
CN-0321: Fully Isolated, Single Channel Voltage and 4 mA to 20 mA Output with HART Connectivity  (pdf, 282 kB) Circuit Note PDF
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.
Videos HTML
UG-546: Evaluating the iCoupler ADuM3480/ADuM3481/ADuM3482 Quad-Channel Digital Isolators  (pdf, 352 kB) User Guides PDF
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 PDF
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
ADuM3482 IBIS Models IBIS Models HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

Product Recommendations & Reference Designs

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Price, packaging, availability

ADUM3482 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADUM3482ARSZ Status: Production 20 ld SSOP 20 Ind Tube, 66 $1.94 $1.60 Y  Material Info Notify Me Purchase Sample
ADUM3482ARSZ-RL7 Status: Production 20 ld SSOP 20 Ind Reel, 500 - $1.60 Y  Material Info Notify Me Purchase
ADUM3482BRSZ Status: Production 20 ld SSOP 20 Ind Tube, 66 $2.42 $2.00 Y  Material Info Notify Me Purchase
ADUM3482BRSZ-RL7 Status: Production 20 ld SSOP 20 Ind Reel, 500 - $2.00 Y  Material Info Notify Me Purchase
Price Table Help

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.

ADUM3481 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADUM3481EBZ Status: Production Evaluation Board $60.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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