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Isolator Interface IC Small 3kV DUAL-CH DIGITAL ISOLATORS

Manufacturer : Analog Devices, Inc
Package/Case : SOIC-8
Product Categories : Isolation Technology ; Standard Digital Isolators
Datasheet: ADUM1281CRZ-RL7 Datasheet (PDF)
RoHs Status: Rohs
In-stock: 208


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ADUM1281CRZ-RL7 Product Details

The ADuM1280/ADuM1281/ADuM1285/ADuM1286 are dualchanneldigital isolators based on the Analog Devices, Inc.,iCoupler® technology. Combining high speed CMOS andmonolithic air core transformer technology, these isolationcomponents provide outstanding performance characteristicssuperior to alternatives, such as optocoupler devices and otherintegrated couplers.

With propagation delay at 23 ns, pulse width distortion is lessthan 2 ns for C grade. Channel-to-channel matching is tight at5 ns for C grade. The two channels of the ADuM1280/ADuM1281/ADuM1285/ADuM1286 are independent isolation channelsand are available in two channel configurations with threedifferent data rates up to 100 Mbps (see the Ordering Guide).Industrial grade models operate with the supply voltage oneither side ranging from 3.135 V to 5.5 V and the automotivegrades operate from 3.135 V to 5.5 V, providing compatibilitywith lower voltage systems as well as enabling a voltagetranslation functionality across the isolation barrier. Unlikeother optocoupler alternatives, the ADuM1280/ADuM1281/ADuM1285/ADuM1286 isolators have a patented refreshfeature that ensures dc correctness in the absence of input logictransitions. When power is first applied or is not yet applied tothe input side, the ADuM1280 and ADuM1281 have a defaulthigh output, and the ADuM1285 and ADuM1286 have a defaultlow output.

For more information on safety and regulatory approvals, go


  • Up to 100 Mbps data rate (NRZ)
  • Low propagation delay: 23 ns typical
  • Low dynamic power consumption
  • Bidirectional communication
  • 3.3 V to 5 V level translation
  • High temperature operation: 125°C
  • High common-mode transient immunity: >25 kV/μs
  • Default high output: ADuM1280/ADuM1281
  • Default low output: ADuM1285/ADuM1286
  • Narrow body, RoHS-compliant, 8-lead SOIC
  • Safety and regulatory approvals
    • UL recognition: 3000 V rms for 1 minute per UL 1577
    • CSA Component Acceptance Notice 5A
    • VDE Certificate of Conformity
      • DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12
  • VIORM = 560 V peak
  • Qualified for automotive applications


  • General-purpose multichannel isolation
  • Data converter isolation
  • Industrial field bus isolation
  • Hybrid electric vehicles, battery monitor, and motor drive

ADUM1281CRZ-RL7 Pinout
(Picture: Pinout)

ADUM1281CRZ-RL7 Block Diagram
(Picture: Diagram)

Technical Parameters

  • Number of Channels
  • 2
  • Propagation Delay Time
  • 24 ns
  • Supply Voltage Max
  • 5.5 V
  • Supply Voltage Min
  • 3 V
  • Supply Current
  • 2 mA
  • Maximum Operating Temperature
  • + 125 C
  • Mounting Style
  • Package / Case
  • SOIC-8
  • Packaging
  • Reel
  • Minimum Operating Temperature
  • - 40 C
  • Number of Lines (Input / Output)
  • 1 /

ADUM1281CRZ-RL7 Datasheet

  • ADUM1281 Technical Documentation/Data sheet

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Estimated Delivery Time: Apr 27 - May 02 days (choose Expedited at checkout).

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  • charge 3.5% service fee.
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    We have rich products, can meet your various needs.

  • Minimum order quantity starts from 1pcs.

    Minimum order quantity starts from 1pcs.

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    Lowest international shipping fee starts from US$2.00.

  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.


  • Step1:Product

    Step1: Products

  • Step2:Vacuum packaging

    Step2: Vacuum Packaging

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    Step3: Anti-Static Bag

  • Step4:Individual packaging

    Step4: Individual Packaging

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    Step5: Packaging Boxes

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    Step6: Bar-Code Shipping Tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Jotrin ESD packing


1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that ADUM1281CRZ-RL7 is the original manufacturer or agent of ADI?
We have a professional business development department to strictly test and verify the qualifications of ADI original manufacturers and agents. All ADI suppliers must pass the qualification review before they can publish their ADUM1281CRZ-RL7 devices; we pay more attention to the channels and quality of ADUM1281CRZ-RL7 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of ADUM1281CRZ-RL7 chips? Including ADI original factory information, Isolation Technology ; Standard Digital Isolators application, ADUM1281CRZ-RL7 pictures?
You can use Jotrin's intelligent search engine, or filter by Isolation Technology ; Standard Digital Isolators category, or find it through Analog Devices, Inc Information page.
Q: Are the ADI's ADUM1281CRZ-RL7 price and stock displayed on the platform accurate?
The ADI's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for ADUM1281CRZ-RL7, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
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Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of ADUM1281CRZ-RL7?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the ADUM1281CRZRL7 we delivered, we will accept the replacement or return of the ADUM1281CRZ-RL7 only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of ADUM1281CRZ-RL7.
(3)The ADUM1281CRZ-RL7 is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
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Analog Devices, Inc

Analog Devices, Inc. was founded by two MIT graduates, Ray Stata and Matthew Lorber in 1965. The same year, the company released its first product, the model 101 op amp, which was a hockey-puck sized module used in test and measurement equipment. In 1967, the company published the first issue of its...
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