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ISO7831

ACTIVE

High voltage, reinforced 3-channel, 2/1, digital isolator with 2000VRMS VIOWM and 14.5mm creepage

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Data sheet

ISO7831

ACTIVE
Data sheet Order now

Product details

Rating Catalog Integrated isolated power No Number of channels 3 Forward/reverse channels 2 forward / 1 reverse Data rate (max) (Mbps) 100 Protocols GPIO, General purpose, PWM, UART Propagation delay time (typ) (ns) 11 Propagation delay time (max) (ns) 16 Part-to-part output skew (max) (ns) 4.5 Channel-to-channel output skew (max) (ns) 2.5 Certifications CQC, CSA, DIN, TUV, UL Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 5700 Surge isolation voltage (VIOSM) (kVPK) 12.8 CMTI (min) (kV/µs) 85 Default output High, Low Creepage (min) (mm) 8, 14.5 Current consumption per channel (DC) (typ) (mA) 1.03 Current consumption per channel (1 Mbps) (typ) (mA) 1.67 Operating temperature range (°C) -55 to 125 Transient isolation voltage (VIOTM) (VPK) 8000 Clearance (min) (mm) 8, 14.5
Rating Catalog Integrated isolated power No Number of channels 3 Forward/reverse channels 2 forward / 1 reverse Data rate (max) (Mbps) 100 Protocols GPIO, General purpose, PWM, UART Propagation delay time (typ) (ns) 11 Propagation delay time (max) (ns) 16 Part-to-part output skew (max) (ns) 4.5 Channel-to-channel output skew (max) (ns) 2.5 Certifications CQC, CSA, DIN, TUV, UL Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 5700 Surge isolation voltage (VIOSM) (kVPK) 12.8 CMTI (min) (kV/µs) 85 Default output High, Low Creepage (min) (mm) 8, 14.5 Current consumption per channel (DC) (typ) (mA) 1.03 Current consumption per channel (1 Mbps) (typ) (mA) 1.67 Operating temperature range (°C) -55 to 125 Transient isolation voltage (VIOTM) (VPK) 8000 Clearance (min) (mm) 8, 14.5
SOIC (DW) 16 106.09 mm² (10.3 mm × 10.3 mm) SOIC (DWW) 16 177.675 mm² (10.3 mm × 17.25 mm)
  • Signaling Rate: Up to 100Mbps
  • Wide Supply Range: 2.25V to 5.5V
  • 2.25V to 5.5V Level Translation
  • Wide Temperature Range: –55°C to 125°C
  • Low Power Consumption, Typical 1.7mA per Channel at 1Mbps
  • Low Propagation Delay: 11ns Typical (5V Supplies)
  • Industry leading CMTI (min): ±100kV/µs
  • Robust Electromagnetic Compatibility (EMC)
  • System-Level ESD, EFT, and Surge Immunity
  • Low Emissions
  • Isolation Barrier Life: > 40 Years
  • SOIC-16 Wide Body (DW) and Extra-Wide Body (DWW) Package Options
  • Safety-Related Certifications:
    • 8000VPK Reinforced Isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5.7kVRMS Isolation for 1 Minute per UL 1577

    • IEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1 certifications
  • Signaling Rate: Up to 100Mbps
  • Wide Supply Range: 2.25V to 5.5V
  • 2.25V to 5.5V Level Translation
  • Wide Temperature Range: –55°C to 125°C
  • Low Power Consumption, Typical 1.7mA per Channel at 1Mbps
  • Low Propagation Delay: 11ns Typical (5V Supplies)
  • Industry leading CMTI (min): ±100kV/µs
  • Robust Electromagnetic Compatibility (EMC)
  • System-Level ESD, EFT, and Surge Immunity
  • Low Emissions
  • Isolation Barrier Life: > 40 Years
  • SOIC-16 Wide Body (DW) and Extra-Wide Body (DWW) Package Options
  • Safety-Related Certifications:
    • 8000VPK Reinforced Isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5.7kVRMS Isolation for 1 Minute per UL 1577

    • IEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1 certifications

The ISO7831x device is a high-performance, 3-channel digital isolator with 8000VPK isolation voltage. This device has reinforced isolation certifications according to VDE, CSA, TUV and CQC. The isolator provides high electromagnetic immunity and low emissions at low power consumption, while isolating CMOS or LVCMOS digital I/Os.

Each isolation channel has a logic input and output buffer separated by silicon dioxide (SiO2) insulation barrier. This device 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. The ISO7831x device has two forward and one reverse-direction channels. If the input power or signal is lost, the default output is high for the ISO7831 device and low for the ISO7831F device. See for further details.

Used in conjunction with isolated power supplies, this device helps prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. Through remarkable chip design and layout techniques, electromagnetic compatibility of ISO7831x has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. ISO7831x is available in a 16-pin SOIC wide-body (DW) and extra-wide body (DWW) packages.

The ISO7831x device is a high-performance, 3-channel digital isolator with 8000VPK isolation voltage. This device has reinforced isolation certifications according to VDE, CSA, TUV and CQC. The isolator provides high electromagnetic immunity and low emissions at low power consumption, while isolating CMOS or LVCMOS digital I/Os.

Each isolation channel has a logic input and output buffer separated by silicon dioxide (SiO2) insulation barrier. This device 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. The ISO7831x device has two forward and one reverse-direction channels. If the input power or signal is lost, the default output is high for the ISO7831 device and low for the ISO7831F device. See for further details.

Used in conjunction with isolated power supplies, this device helps prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. Through remarkable chip design and layout techniques, electromagnetic compatibility of ISO7831x has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. ISO7831x is available in a 16-pin SOIC wide-body (DW) and extra-wide body (DWW) packages.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet ISO7831x High-Performance, 8000VPK Reinforced Triple Digital Isolators datasheet (Rev. C) PDF | HTML Jul 29, 2025
Certificate VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. AB) Jul 15, 2026
Application note Understand Safety Requirements and Isolation for High-Voltage Application Part I PDF | HTML Jun 15, 2026
White paper High-voltage reinforced isolation: Definitions and test methodologies (Rev. A) PDF | HTML May 12, 2026
Certificate TUV Certificate for Isolation Devices (Rev. M) May 7, 2026
Certificate UL Certificate of Compliance File E181974 Vol 4 Sec 6 (Rev. S) May 7, 2026
White paper Improve Your System Performance by Replacing Optocouplers with Digital Isolators (Rev. D) PDF | HTML Nov 7, 2025
Certificate CQC Certificate for ISOxxDWx (Rev. K) Aug 18, 2025
Application note Digital Isolator Design Guide (Rev. G) PDF | HTML Sep 13, 2023
White paper Circuit Board Insulation Design According to IEC60664 for Motor Drive Apps PDF | HTML Aug 31, 2023
Certificate CSA Certificate for ISO78xxDWx Mar 13, 2023
White paper Why are Digital Isolators Certified to Meet Electrical Equipment Standards? Nov 16, 2021
White paper Distance Through Insulation: How Digital Isolators Meet Certification Requiremen PDF | HTML Jun 11, 2021
White paper Direct-drive configuration for GaN devices (Rev. A) Nov 19, 2018
Analog design Journal Pushing the envelope with high-performance digital-isolation technology (Rev. A) Aug 22, 2018
Application brief Considerations for Selecting Digital Isolators Jul 24, 2018
Functional safety information Isolation in solar power converters: Understanding the IEC62109-1 safety standar (Rev. A) May 18, 2018
Analog design Journal How to reduce radiated emissions of digital isolators for systems with RF module Mar 26, 2018
Application note Isolation Glossary (Rev. A) Sep 19, 2017
Technical article Is integrated GaN changing the conventional wisdom? PDF | HTML Oct 7, 2016
Analog design Journal 4Q 2015 Analog Applications Journal Oct 30, 2015
White paper Isolation in AC Motor Drives: Understanding the IEC 61800-5-1 Safety Standard (Rev. B) Sep 25, 2015
White paper Understanding electromagnetic compliance tests in digital isolators Oct 17, 2014

Design & development

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Simulation model

ISO7831 IBIS Model (Rev. B)

SLLM286B.ZIP (104 KB) - IBIS model
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Simulation model

ISO7831F IBIS Model

SLLM288.IBS (243 KB) - IBIS model
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SOIC (DWW) 16 Ultra Librarian
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