ADUM1280
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ADUM1280

3kV rms, Default High, Dual-Channel Digital Isolators (2/0 Channel Directionality)

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 12
1ku List Price Starting From $1.21
Features
  • 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
Additional Details
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The ADuM1280/ADuM1281/ADuM1285/ADuM1286 are dualchannel 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 propagation delay at 23 ns, pulse width distortion is less than 2 ns for C grade. Channel-to-channel matching is tight at 5 ns for C grade. The two channels of the ADuM1280/ADuM1281/ ADuM1285/ADuM1286 are independent isolation channels and are available in two channel configurations with three different data rates up to 100 Mbps (see the Ordering Guide). Industrial grade models operate with the supply voltage on either side ranging from 3.135 V to 5.5 V and the automotive grades operate from 3.135 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 alternatives, the ADuM1280/ADuM1281/ ADuM1285/ADuM1286 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 ADuM1280 and ADuM1281 have a default high output, and the ADuM1285 and ADuM1286 have a default low output.

For more information on safety and regulatory approvals, go to www.analog.com/iCouplersafety.

Applications

  • General-purpose multichannel isolation
  • Data converter isolation
  • Industrial field bus isolation
  • Hybrid electric vehicles, battery monitor, and motor drive
Part Models 12
1ku List Price Starting From $1.21

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Documentation

Documentation

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADUM1280ARZ
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ADUM1280ARZ-RL7
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ADUM1280BRZ
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ADUM1280BRZ-RL7
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ADUM1280CRZ
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ADUM1280CRZ-RL7
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ADUM1280WARZ
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ADUM1280WARZ-RL7
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ADUM1280WBRZ
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ADUM1280WBRZ-RL7
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ADUM1280WCRZ
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ADUM1280WCRZ-RL7
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Product Lifecycle

PCN

Jun 13, 2017

- 17_0004

ADuM1280/ADuM1281/ADuM1285/ADuM1286 Die Revision, and Data Sheet Change

ADUM1280ARZ

PRODUCTION

ADUM1280ARZ-RL7

PRODUCTION

ADUM1280BRZ

PRODUCTION

ADUM1280BRZ-RL7

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ADUM1280CRZ

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ADUM1280CRZ-RL7

PRODUCTION

Sep 22, 2015

- 15_0135

Alternate Assembly Site of Select Isolator Products in 8L/16L SOIC_N, 16L/20L SOIC_W and 16L/20L SOIC_IC at ASE Chungli

ADUM1280ARZ

PRODUCTION

ADUM1280ARZ-RL7

PRODUCTION

ADUM1280BRZ

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ADUM1280CRZ

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PRODUCTION

Jul 22, 2015

- 15_0158

ADUM1280/81/85/86 Data Sheet Specification Change

ADUM1280ARZ

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ADUM1280ARZ-RL7

PRODUCTION

ADUM1280BRZ

PRODUCTION

ADUM1280BRZ-RL7

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ADUM1280CRZ

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ADUM1280CRZ-RL7

PRODUCTION

Jul 24, 2018

- 17_0003

ADuM1280W/ADuM1281W/ADuM1285W/ADuM1286W Die Revision, Data Sheet Change, Test Platform Migration, and Assembly Site Transfer

ADUM1280WARZ

PRODUCTION

ADUM1280WARZ-RL7

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ADUM1280WBRZ

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ADUM1280WBRZ-RL7

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Filter by Model

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Part Models

Product Lifecycle

PCN

Jun 13, 2017

- 17_0004

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ADuM1280/ADuM1281/ADuM1285/ADuM1286 Die Revision, and Data Sheet Change

ADUM1280ARZ

PRODUCTION

ADUM1280ARZ-RL7

PRODUCTION

ADUM1280BRZ

PRODUCTION

ADUM1280BRZ-RL7

PRODUCTION

ADUM1280CRZ

PRODUCTION

ADUM1280CRZ-RL7

PRODUCTION

Sep 22, 2015

- 15_0135

arrow down

Alternate Assembly Site of Select Isolator Products in 8L/16L SOIC_N, 16L/20L SOIC_W and 16L/20L SOIC_IC at ASE Chungli

ADUM1280ARZ

PRODUCTION

ADUM1280ARZ-RL7

PRODUCTION

ADUM1280BRZ

PRODUCTION

ADUM1280BRZ-RL7

PRODUCTION

ADUM1280CRZ

PRODUCTION

ADUM1280CRZ-RL7

PRODUCTION

Jul 22, 2015

- 15_0158

arrow down

ADUM1280/81/85/86 Data Sheet Specification Change

ADUM1280ARZ

PRODUCTION

ADUM1280ARZ-RL7

PRODUCTION

ADUM1280BRZ

PRODUCTION

ADUM1280BRZ-RL7

PRODUCTION

ADUM1280CRZ

PRODUCTION

ADUM1280CRZ-RL7

PRODUCTION

Jul 24, 2018

- 17_0003

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ADuM1280W/ADuM1281W/ADuM1285W/ADuM1286W Die Revision, Data Sheet Change, Test Platform Migration, and Assembly Site Transfer

ADUM1280WARZ

PRODUCTION

ADUM1280WARZ-RL7

PRODUCTION

ADUM1280WBRZ

PRODUCTION

ADUM1280WBRZ-RL7

PRODUCTION

ADUM1280WCRZ

PRODUCTION

ADUM1280WCRZ-RL7

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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EVAL-1CH2CHEBZ

Evaluation Board for Single and Dual Channel Standard Data Isolators in 8 lead SOIC Package

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EVAL-1CH2CHEBZ

Evaluation Board for Single and Dual Channel Standard Data Isolators in 8 lead SOIC Package

Evaluation Board for Single and Dual Channel Standard Data Isolators in 8 lead SOIC Package

Features and Benefits

  • Access to all 2 data channels 
  • Multiple connection options 
  • Support for Tektronix active probes 
  • Provision for cable terminations 
  • Support for PCB edge-mounted coaxial connectors 
  • Easy configuration 
  • Sample iCoupler digital isolator must be ordered separately: 

Supported iCoupler Models
ADuM110N0BRZ / ADuM110N1BRZ
ADuM120N0BRZ / ADuM120N1BRZ
ADuM121N0BRZ / ADuM121N1BRZ
ADuM210N0BRIZ / ADuM210N1BRIZ
ADuM225N0BRIZ / ADuM225N1BRIZ
ADuM226N0BRIZ / ADuM226N1BRIZ
ADuM7240ARZ / ADuM7240CRZ
ADuM7241ARZ / ADuM7241CRZ
ADuM1200AR / ADuM1200ARZ
ADuM1200BR / ADuM1200BRZ
ADuM1200CR / ADuM1200CRZ
ADuM1200WSRZ / ADuM1200WTRZ
ADuM1200WURZ
ADuM1201AR / ADuM1201ARZ
ADuM1201BR / ADuM1201BRZ
ADuM1201CR / ADuM1201CRZ
ADuM1210BRZ
ADuM3200ARZ / ADuM3200BRZ
ADuM3200CRZ / ADuM3200WARZ
ADuM3200WBRZ / ADuM3200WCRZ
ADuM3201ARZ / ADuM3201BRZ
ADuM3201CRZ / ADuM3201WARZ
ADuM3201WBRZ / ADuM3201WCRZ
ADuM3210ARZ / ADuM3210BRZ
ADuM3210TRZ / ADuM3210WARZ
ADuM3210WBRZ / ADuM3210WCRZ
ADuM3211ARZ / ADuM3211BRZ
ADuM3211TRZ /ADuM3211WARZ
ADuM3211WBRZ / ADuM3211WCRZ
ADuM1280ARZ / ADuM1280BRZ
ADuM1280CRZ / ADuM1280WARZ
ADuM1280WBRZ / ADuM1280WCRZ
ADuM1281ARZ / ADuM1281BRZ
ADuM1281CRZ / ADuM1281WARZ
ADuM1281WBRZ / ADuM1281WCRZ

Product Detail

The EVAL-1CH2CHSOICEBZ supports single and dual channel standard data isolators in 8 lead SOIC packages. The evaluation board provides a JEDEC standard 8-lead SOIC_N and SOIC_W pad layout. This supports signal distribution, loopback, and loads referenced to VDDx or GNDx, as well as optimal bypass capacitance. Signal sources can conducted to the board through header pins or through edge-mounted SMA connectors (not supplied with board). Terminal blocks provide for power connections. The board includes 200 mil header positions for compatibility with Tektronix active probes (not supplied with board).

The board follows best printed circuit board (PCB) design practices for 4-layer boards, including a full power and ground plane on each side of the isolation barrier. No other EMI or noise mitigation design features are included on this board. In cases of very high speed operation or when ultralow emissions are required, refer to the AN-1109 application note for additional board layout techniques.

Tools & Simulations

Tools & Simulations 1

Reference Designs

Reference Designs 1

4-Channel Thermocouple and RTD Circuit

Isolated 4-Channel, Thermocouple/RTD Temperature Measurement System with 0.5°C Accuracy

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CN0287

Isolated 4-Channel, Thermocouple/RTD Temperature Measurement System with 0.5°C Accuracy

CN0287

Circuits from the lab

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Isolated 4-Channel, Thermocouple/RTD Temperature Measurement System with 0.5°C Accuracy

Features and Benefits

  • 4-Channel Thermocouple/RTD Measurements
  • Fully Isolated
  • Input Protection
View Detailed Reference Design external link

Design & Integration Tools

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