ADUM1400

Quad-Channel Digital Isolator (4/0 Channel Directionality)
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Product Details

The ADuM1400 is a quad-channel digital isolator with 4/0 channel directionality, 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 family of isolators provide four independent isolation channels in a variety of channel configurations and data rates (see the Ordering Guide in the data sheet). 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.

Applications

  • General-purpose multichannel isolation
  • SPI interface/data converter isolation
  • RS-232/RS-422/RS-485 transceivers
  • Industrial field bus isolation
  • Automotive systems

Product Lifecycle

checked Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits

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EVAL-ADUMQS Circuit Diagram

Product Details

EVAL-ADuMQSEBZ can be used with most iCoupler® and isoPower(R) isolation products in the 16-lead, wide-body SOIC and QSOP packages. The evaluation board supports the common pad positions for power, ground, and I/O pins.

Supported iCoupler® Products

  • ADuM130x
  • ADuM131x
  • ADuM140x
  • ADuM141x
  • ADuM1510
  • ADuM240x
  • ADuM330x
  • ADuM340x
  • ADuM344x
  • ADuM440x
  • ADuM5000
  • ADuM520x
  • ADuM540x
  • ADuM6000
  • ADuM620x
  • ADuM640x
  • ADuM744x
  • ADuM7510

Documentation

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Tools & Simulations

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Reference Designs

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CN0235 Circuit Diagram

CN0235 Photo

CN0209 Circuit Diagram

CN0209 Photo

Design Resources

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

ADUM1400 Material Declaration
PCN-PDN Information Quality And Reliability Symbols and Footprints

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Reviews

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Overview

4 Reviews
4 out of 4 (100%) customers recommend this product.
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Most Helpful Review

by mwaltl
I currently use the ad8065 to develop a measurement circuit for uA or later pA currents. The SNR ratio of the first layout is very promising for the future development...

Most Recent Review

by SergILD
Good product for using in isolation digital signals line.

All Reviews

by SergILD, 16 Jun 14
Good product
Good product for using in isolation digital signals line.
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by manelgcm, 10 Apr 14
Excellent solution for decoupling modules
This is an excellent approach for decoupling issues without the heavy implementation effort of regular optocouplers.
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by Anonymous, 13 Mar 14
ADUM1400
The IC works fine. But I need more tests for other measurements to check its performance.
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by mwaltl, 23 Sep 13
Great Product
I currently use the ad8065 to develop a measurement circuit for uA or later pA currents. The SNR ratio of the first layout is very promising for the future development...
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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.


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Evaluation Boards Pricing displayed is based on 1-piece.
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.