ADUM1441:  Micropower Quad-Channel Digital Isolator, Default High (3/1 Channel Directionality)

Product Details

Product Status:Recommended for New Designs

The ADUM1441 is a micropower, 4-channel digital isolator which has default high output and 3/1 channel directionality based on the Analog Devices, Inc., iCoupler® technology. ( Dual-channel products available). Combining high speed, complementary metal oxide semiconductor (CMOS) and monolithic air core transformer technologies, these isolation components provide outstanding performance characteristics superior to the alternatives, such as optocoupler devices, while requiring the lowest power of any available isolation product. The ENX signals can be used to disable the internal refresh, which lowers the total quiescent current to less than 1 µA.

The ADuM1440/ADuM1441/ADuM1442/ADuM1445/ ADuM1446/ADuM1447 family of quad 2.5 kV digital isolation devices are packaged in a small 16-lead QSOP and 20-lead SSOP. While most 4-channel isolators come in 16-lead wide SOIC packages, the ADuM1440/ ADuM1441/ADuM1442/ADuM1445/ADuM1446/ADuM1447 frees almost 70% of board space and yet can still withstand high isolation voltages and meet regulatory requirements, such as UL and CSA standards (pending). In addition to the space savings, the ADuM1440/ADuM1441/ADuM1442/ADuM1445/ ADuM1446/ADuM1447 operates with supplies as low as 2.25 V.

Despite the low power consumption, all models of the ADuM1440/ ADuM1441/ADuM1442/ADuM1445/ADuM1446/ADuM1447 provide low, pulse width distortion <8 ns. In addition, every model has an input glitch filter to protect against extraneous noise disturbances.

APPLICATIONS

  • General-purpose, low power multichannel isolation
  • 1 MHz, low power peripheral interface (SPI)
  • 4 mA to 20 mA loop process controls

FEATURES and BENEFITS

  • Ultralow power operation
    3.3 V operation (typical)
    5.6 µA per channel quiescent current, refresh enabled
    0.3 µA per channel quiescent current, refresh disabled
    148 µA/Mbps per channel typical dynamic current
  • 2.5 V operation (typical)
    3.4 µA per channel quiescent current, refresh enabled
    0.1 µA per channel quiescent current, refresh disabled
    117 µA/Mbps per channel typical dynamic current
  • Small, 16-lead QSOP and
    20-lead SSOP
  • Bidirectional communication
  • Up to 2 Mbps data rate (NRZ)
  • High temperature operation: 125°C
  • High common-mode transient immunity: >25 kV/µs
  • Dual-channel products available
  • See datasheet for additional features

Functional Block Diagram for ADuM1441

Video: Industry’s Lowest Power Digital Isolators

Documentation

Title Content Type File Type
ADuM1440/ADuM1441/ADuM1442/ADuM1445/ADuM1446/ADuM1447: Micropower Quad-Channel Digital Isolators Data Sheet (Rev A, 03/2014) (pdf, 426 kB) Data Sheets PDF
Industry's Lowest Power Digital Isolators
The ADuM144x family of digital isolators is the industry's lowest power isolators. Capable of up to 2500V of isolation in an ultra-small QSOP package, check out how a common potato can drive these devices.
Videos HTML
UG-630: Evaluating the iCoupler ADuM1440ARQZ/ADuM1441ARQZ/ ADuM1442ARQZ/ADuM1445ARQZ/ADuM1446ARQZ/ADuM1447ARQZ with the EVAL-ADuM144xQSOP16-EBZ Evaluation System  (pdf, 321 kB) User Guides PDF
MS-2644: Ultralow Power Opening Applications to High Speed Isolation  (pdf, 1747 kB) Technical Articles PDF
Analog Devices Introduces the Industry’s Lowest Power Digital Isolators (13 Nov 2013) Press Releases HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
ADUM1441 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.

SampleSample & Buy

Price, packaging, availability

ADUM1441 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADUM1441ARQZ Status: Production 16 ld QSOP 16 Ind Tube, 98 $2.29 $1.98 Y  Material Info Notify Me Purchase Sample
ADUM1441ARQZ-RL7 Status: Production 16 ld QSOP 16 Ind Reel, 1000 - $1.98 Y  Material Info Notify Me Purchase
ADUM1441ARSZ Status: Production SSOP 5.3 MM 20 Ind Tube, 66 $2.86 $2.48 Y  Material Info Notify Me Purchase Sample
ADUM1441ARSZ-RL7 Status: Production SSOP 5.3 MM 20 Ind Reel, 500 - $2.48 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.

ADUM144x Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADUM1441EBZ Status: Production Evaluation Board $49.00 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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