ADUM1281

PRODUCTION

3kV rms, Default High, Dual-Channel Digital Isolators (1/1 Channel Directionality)

Data Sheet (Rev. D) Product Selection Table
Part Models
12
1ku List Price
Starting From $1.13
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Part Details

  • 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
ADUM1281
3kV rms, Default High, Dual-Channel Digital Isolators (1/1 Channel Directionality)
ADuM1281-1286 Functional Block Diagram ADuM1281-1286 Pin Configuration
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Documentation

Data Sheet 1

Safety and Regulatory Compliance 1

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Hardware Ecosystem

Parts Product Life Cycle Description
ADUM321N
RECOMMENDED FOR NEW DESIGNS 5.7 kV RMS/3.0 kV RMS Dual Digital Isolators
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Tools & Simulations

ADuM1281 IBIS Models 1

Evaluation Kits

eval board
schematic 1
schematic 2
schematic 3
schematic 4
EVAL-1CH2CHEBZ

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

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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 Details

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.
EVAL-1CH2CHEBZ
Evaluation Board for Single and Dual Channel Standard Data Isolators in 8 lead SOIC Package
EVAL-1CH2CHSOICEBZ (angle 1) EVAL-1CH2CHSOICEBZ (angle 2) EVAL-1CH2CHSOICEBZ (top) EVAL-1CH2CHSOICEBZ (bottom)

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