ADUM2286

5 kV RMS Dual Channel Digital Isolators (Default Low, 1/1 Channel Directionality)
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Product Details

The ADuM2280/ADuM2281/ADuM2285/ADuM2286 (also referred to as ADuM228x in this data sheet) are 5 kV rms dual-channel digital isolators 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 and other integrated couplers.

With propagation delay at 24 ns maximum, pulse width distortion is less than 2 ns for C grade. Channel-to-channel matching is tight at 5 ns for C grade. ADuM228x are available in two channel configurations with three different data rates up to 100 Mbps (see the Ordering Guide). 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. Unlike other optocoupler altern-atives, the ADuM228x isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions. When power is first applied or is not yet applied to the input side, the ADuM2280 and ADuM2281 have a default high output and the ADuM2285 and ADuM2286 have a default low output.

Applications

  • General-purpose, high voltage, multichannel isolation
  • Medical equipment
  • Power supplies
  • RS-232/RS-422/RS-485 transceiver isolation

Product Lifecycle

checked Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Reference Materials

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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.

ADUM2286 Material Declaration
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Overview

3 Reviews
3 out of 3 (100%) customers recommend this product.
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Most Helpful Review

by Danx
I didn't test this device with it full speed but for simple RS-232 115.2kbps it works perfectly.

All Reviews

by Danx, 3 Jun 14
Izolation for RS-232 communication
I didn't test this device with it full speed but for simple RS-232 115.2kbps it works perfectly.
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by Dan, 13 May 14
RS-232 Izolation
I had used ADUM2286 as a RS-232 interface isolation and it worked perfect. I was using it at 38400 baud but it works at 256000 too.
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by nemetila, 12 Dec 13
Performs as expected
It is a good chip that fulfills our requirements. Same competitor products might consume less current at the same speed.
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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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