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Details for Texas Instruments


High-immunity, 100-Mbps, 5.7-kVRMS reinforced dual-channel 1/1 digital isolator
Buy Directly from Texas Instruments (4030 in Stock)
$3.7800 per unit
Series Information for ISO7821DWW - Texas Instruments


  • feature
    2.25 V to 5.5 V Level Translation
  • feature
    Industry leading CMTI(Min): u00b1100 kV/u03bcs
  • feature
    Isolation Barrier Life: > 25 Years
  • feature
    Low Emissions
  • feature
    Low Power Consumption, Typical 1.8 mA per Channel at 1 Mbps
  • feature
    Low Propagation Delay: 11 ns Typical (5 V Supplies)
  • feature
    Robust Electromagnetic Compatibility (EMC)
  • feature
    SOIC-16 Wide Body (DW) and Extra-Wide Body (DWW) Package Options
  • feature
    Safety and Regulatory Approvals:
  • feature
    Signaling Rate: Up to 100 Mbps
  • feature
    System-Level ESD, EFT, and Surge Immunity
  • feature
    Wide Supply Range: 2.25 V to 5.5 V
  • feature
    Wide Temperature Range: u201355u00b0C to 125u00b0C


The ISO7821 is a high-performance, dual-channel digital isolator with 8000 VPK isolation voltage. This device has reinforced isolation certifications according to VDE, CSA, CQC, and TUV. The isolator provides high electromagnetic immunity and low emissions at low power consumption, while isolating CMOS or LVCMOS digital I/O’s. Each isolation channel has a logic input and output buffer separated by silicon dioxide (SiO2) insulation barrier. ISO7821 has one forward and one reverse-direction channel. If the input power or signal is lost, default output is 'high' for the ISO7821 and 'low' for the ISO7821F device. Used in conjunction with isolated power supplies, this device prevents noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. Through innovative chip design and layout techniques, electromagnetic compatibility of ISO7821 has been significantly enhanced to ease system-level ESD, EFT, Surge and Emissions compliance. ISO7821 is available in 16-pin SOIC wide-body (DW) and extra-wide body (DWW) packages. The DWW package option comes with enable pins which can be used to put the respective outputs in high impedance for multi-master driving applications and to reduce power consumption.


No. of Channels:
Propagation Delay:
Supply Voltage Min:
Supply Voltage Max:
Interface Case Style:
No. of Pins:
Operating Temperature Min:
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Product Range:
Automotive Qualification Standard:
RoHS Phthalates Compliant:
MSL 2 - 1 year
No SVHC (27-Jun-2018)

Alternate Descriptions

Avnet America

Digital Isolator/Buffer, 2 Channel, High-Performance, 8000Vpk, 16-pin Wide SOIC, Bulk

Avnet America product

Avnet Europe

Digital Isolator/Buffer, 2 Channel, High-Performance, 8000Vpk, 16-pin Wide SOIC, Bulk

Avnet Europe product

Texas Instruments

High-immunity, 100-Mbps, 5.7-kVRMS reinforced dual-channel 1/1 digital isolator

Texas Instruments product