ISO7831

SOIC (DW)

16

77 mm² 10.3 x 7.5

SOIC (DWW)

16

178 mm² 10.3 x 17.25

Signaling Rate: Up to 100 Mbps
Wide Supply Range: 2.25 V to 5.5 V
2.25 V to 5.5 V Level Translation
Wide Temperature Range: –55°C to 125°C
Low Power Consumption, Typical 1.7 mA per
Channel at 1 Mbps
Low Propagation Delay: 11 ns Typical
(5-V Supplies)
Industry leading CMTI (min): ±100 kV/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:
- 8000 V_PK Reinforced Isolation per DIN V VDE
  V 0884-10 (VDE V 0884-10):2006-12
- 5.7 kV_RMS Isolation for 1 Minute per UL 1577
- CSA Component Acceptance Notice 5A, IEC
  60950-1 and IEC 60601-1 End Equipment
  Standards
- CQC Certification per GB4943.1-2011
- TUV Certification per EN 61010-1 and EN
  60950-1
- All DW Package Certifications Complete;
  DWW Package Certifications Complete per
  UL, VDE, TUV and Planned for CSA and CQC

Signaling Rate: Up to 100 Mbps
Wide Supply Range: 2.25 V to 5.5 V
2.25 V to 5.5 V Level Translation
Wide Temperature Range: –55°C to 125°C
Low Power Consumption, Typical 1.7 mA per
Channel at 1 Mbps
Low Propagation Delay: 11 ns Typical
(5-V Supplies)
Industry leading CMTI (min): ±100 kV/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:
- 8000 V_PK Reinforced Isolation per DIN V VDE
  V 0884-10 (VDE V 0884-10):2006-12
- 5.7 kV_RMS Isolation for 1 Minute per UL 1577
- CSA Component Acceptance Notice 5A, IEC
  60950-1 and IEC 60601-1 End Equipment
  Standards
- CQC Certification per GB4943.1-2011
- TUV Certification per EN 61010-1 and EN
  60950-1
- All DW Package Certifications Complete;
  DWW Package Certifications Complete per
  UL, VDE, TUV and Planned for CSA and CQC

The ISO7831x device is a high-performance, 3-channel digital isolator with 8000-V_PK 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 Device Functional Modes 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 innovative 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 8000-V_PK 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 Device Functional Modes 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 innovative 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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	Type	Title	Date
*	Data sheet	ISO7831x High-Performance, 8000-VPK Reinforced Triple Digital Isolators datasheet (Rev. B)	28 Jun 2016
	Certificate	TUV Certificate for Isolation Devices (Rev. J)	23 Aug 2021
	Certificate	CQC Certification (Rev. G)	19 Aug 2021
	Application note	Digital Isolator Design Guide (Rev. C)	12 Jul 2021
	Certificate	CSA Certification (Rev. Q)	14 Jun 2021
	Certificate	VDE certificate for reinforced isolation for DIN VDE V 0884-11:2017-01 (Rev. O)	14 Jun 2021
	White paper	Distance Through Insulation: How Digital Isolators Meet Certification Requiremen	11 Jun 2021
	User guide	Universal Digital Isolator Evaluation Module	04 Mar 2021
	Certificate	UL Certification (Rev. O)	03 Feb 2021
	White paper	Improve Your System Performance by Replacing Optocouplers with Digital Isolators (Rev. A)	07 Dec 2020
	Technical article	How to select the right digital isolator for your design	21 Oct 2020
	Technical article	Why signal isolation matters in 48-V HEV/EV systems	20 Nov 2019
	White paper	Isolation in AC Motor Drives: Understanding the IEC 61800-5-1 Safety Standard (Rev. A)	19 Sep 2019
	Technical article	Staying on budget: How digital isolators are transforming field transmitters	24 May 2019
	Technical article	What are isolated digital inputs?	08 Mar 2019
	White paper	Direct-drive configuration for GaN devices (Rev. A)	19 Nov 2018
	Analog design journal	Pushing the envelope with high-performance digital-isolation technology (Rev. A)	22 Aug 2018
	Application note	Considerations for Selecting Digital Isolators	24 Jul 2018
	White paper	Isolation in solar power converters: Understanding the IEC62109-1 safety standar (Rev. A)	18 May 2018
	Analog design journal	How to reduce radiated emissions of digital isolators for systems with RF module	26 Mar 2018
	Application note	Isolation Glossary (Rev. A)	19 Sep 2017
	Analog design journal	4Q 2015 Analog Applications Journal	30 Oct 2015
	Analog design journal	Pushing the envelope with high-performance digital-isolation technology	30 Oct 2015
	User guide	ISO784xx Quad-Channel Digital Isolator EVM User Guide	17 Oct 2014
	White paper	Understanding electromagnetic compliance tests in digital isolators	17 Oct 2014
	White paper	High-voltage reinforced isolation: Definitions and test methodologies	16 Oct 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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