ISO7842

SOIC (DW)

77 mm² 10.3 x 7.5

SOIC (DWW)

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
Wide Body SOIC-16 Package and Extra-Wide Body SOIC-16 Package Options
Safety and Regulatory Approvals:
- 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
Wide Body SOIC-16 Package and Extra-Wide Body SOIC-16 Package Options
Safety and Regulatory Approvals:
- 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 ISO7842x device is a high-performance, quad-channel digital isolator with a 8000-V_PK 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/Os. Each isolation channel has a logic input and output buffer separated by a silicon-dioxide (SiO₂) insulation barrier.

This device comes with enable pins that can be used to put the respective outputs in high impedance for multi-master driving applications and to reduce power consumption. The ISO7842 device has two forward and two reverse-direction channels. If the input power or signal is lost, the default output is high for the ISO7842 device and low for the ISO7842F device. See the Device Functional Modes section 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 the ISO7842 device has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance.

The ISO7842 device is available in 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	ISO7842x High-Performance, 8000-VPK Reinforced Quad-Channel Digital Isolator datasheet (Rev. G)	02 Mar 2017
	White paper	Why are Digital Isolators Certified to Meet Electrical Equipment Standards?	16 Nov 2021
	Application note	Digital Isolator Design Guide (Rev. D)	15 Nov 2021
	Certificate	VDE Certificate for Reinforced Isolation for DIN VDE V 0884-11:2017-01 (Rev. Q)	12 Nov 2021
	Certificate	TUV Certificate for Isolation Devices (Rev. J)	23 Aug 2021
	Certificate	CQC Certification (Rev. G)	19 Aug 2021
	Certificate	CSA Certification (Rev. Q)	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
	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

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

DIGI-ISO-EVM — Universal digital isolator evaluation module

DIGI-ISO-EVM is an evaluation module (EVM) used to evaluate any of the TI single-channel, dual-channel, triple-channel, quad-channel or six-channel digital isolator devices in five different packages - 8-pin narrow-body SOIC (D), 8-pin wide-body SOIC (DWV), 16-pin wide-body SOIC (DW), 16-pin ultra- (...)

User guide

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Evaluation board

ISO7842-EVM — High-Immunity, 5.7kVRMS Reinforced Quad-Channel 2/2 Digital Isolator Evaluation Module

The ISO7842 provides galvanic isolation up to 5700 VRMS for 1 minute per UL and 8000 VPK per VDE. This device has four isolated channels comprised of a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. Used in conjunction with isolated power supplies, this (...)

User guide

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Simulation model

ISO7842 IBIS Model (Rev. A)

SLLM263A.ZIP (52 KB) - IBIS Model

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Simulation model

ISO7842F IBIS Model (Rev. A)

SLLM278A.ZIP (52 KB) - IBIS Model

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This reference design showcases a cost-optimized and scalable ADC-based AC/DC binary input module (BIM) architecture with reinforced isolation. The 16 channels of a 10- or 12-bit SAR ADC are used for sensing multiple binary inputs. The op amps, in addition to keeping the cost per-channel low, (...)

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Significantly improves high frequency AC signal chain performance (SNR and THD) by (...)

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This “18-bit, 2-Msps Isolated Data Acquisition Reference Design to achieve maximum SNR and sampling rate” illustrates how to overcome performance-limiting challenges typical of isolated data acquisition system design:

Maximizing sampling rate by minimizing propagation delay introduced by digital (...)

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The TIDA-00448 reference design is an isolated IGBT gate driver with bipolar gate voltages intended for driving high power IGBT’s requiring high peak gate current up to 40 A. TI’s NexFET power blocks which scales in this range, with same package, enables single design to be used (...)

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TIDA-00267 — Polarity Correcting Isolated CAN Reference Design

A ready to use design that efficiently solves the problem of improper installation by adding antiparallel communication channels and appropriate control signal to enable polarity correction for the Controller Area Network (CAN) bus.

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TIDA-00330 — Reinforced isolated M-LVDS transceiver reference design

This reference design demonstrates the performance of a reinforced, isolated, full-duplex M-LVDS transceiver node using the ISO7842 and SN65MLVD203. A single reinforced digital isolator replaces two basic digital isolators, reducing cost and PCB area.