ISO7841

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Highest isolation rating, quad-channel, 3/1, reinforced digital isolator

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Product details

Parameters

Integrated isolated power No Number of channels (#) 4 Forward/reverse channels 3/1 Isolation rating (Vrms) 5700 Data rate (Max) (Mbps) 100 Rating Catalog Surge voltage capability (Vpk) 12800 Current consumption per channel (DC) (Typ) (mA) 0.9 Current consumption per channel (1 Mbps) (Typ) (mA) 1.53 Operating temperature range (C) -55 to 125 Default output High, Low Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 2.25 Propagation delay (Typ) (ns) 10.7 open-in-new Find other Digital isolators

Package | Pins | Size

SOIC (DW) 16 77 mm² 10.3 x 7.5 SOIC (DWW) 16 178 mm² 10.3 x 17.25 open-in-new Find other Digital isolators

Features

  • 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-VPK Reinforced Isolation per DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
    • 5.7-kVRMS 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

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Description

The ISO7841x device is a high-performance, quad-channel digital isolator with a 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/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 ISO7841 device has three forward and one reverse-direction channels. If the input power or signal is lost, the default output is high for the ISO7841 device and low for the ISO7841F 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 ISO7841 device has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance.

The ISO7841 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
* Datasheet ISO7841x High-Performance, 8000-VPK Reinforced Quad-Channel Digital Isolator datasheet (Rev. G) Mar. 02, 2017
More literature TUV certificate for isolation devices (Rev. I) Mar. 14, 2020
Technical articles Isolation 101: How to find the right isolation solution for your application Feb. 11, 2020
Technical articles Why signal isolation matters in 48-V HEV/EV systems Nov. 20, 2019
More literature CSA Certification (Rev. P) Nov. 19, 2019
More literature VDE certificate for reinforced isolation for DIN VDE V 0884-11:2017-01 (Rev. N) Nov. 13, 2019
White papers Isolation in AC Motor Drives: Understanding the IEC 61800-5-1 Safety Standard (Rev. A) Sep. 19, 2019
More literature CQC Certification (Rev. F) Sep. 13, 2019
Application notes A Reinforced-isolated Analog Input Chain for Space-constrained Applications Sep. 01, 2019
More literature UL Certification (Rev. N) Jul. 30, 2019
Technical articles Staying on budget: How digital isolators are transforming field transmitters May 24, 2019
Technical articles What are isolated digital inputs? Mar. 08, 2019
Application notes Pushing the envelope with high-performance digital-isolation technology (Rev. A) Aug. 22, 2018
Application notes Digital Isolator Design Guide (Rev. B) Aug. 01, 2018
Application notes Considerations for Selecting Digital Isolators Jul. 24, 2018
White papers Isolation in solar power converters: Understanding the IEC62109-1 safety standar (Rev. A) May 18, 2018
White papers Understanding failure modes in isolators (Rev. A) May 10, 2018
Application notes How to reduce radiated emissions of digital isolators for systems with RF module Mar. 26, 2018
Application notes Isolation Glossary (Rev. A) Sep. 19, 2017
Application notes How to use isolation to improve ESD, EFT and surge immunity in industrial system Jul. 24, 2017
Application notes 4Q 2015 Analog Applications Journal Oct. 30, 2015
Application notes Common-mode transient immunity for isolated gate drivers Oct. 30, 2015
Application notes Pushing the envelope with high-performance digital-isolation technology Oct. 30, 2015
User guides ISO784xx Quad-Channel Digital Isolator EVM User Guide Oct. 17, 2014
White papers Understanding electromagnetic compliance tests in digital isolators Oct. 17, 2014
White papers High-voltage reinforced isolation: Definitions and test methodologies Oct. 16, 2014

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
49
Description

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 (...)

Features
  • 8000 VPK isolation per VDE0884-10 Ed 2.0
  • 5.7 kVRMS isolation for 1 minute per UL 1577
  • Signaling rate: 100 Mbps
  • Isolation barrier life: > 25 years

Design tools & simulation

SIMULATION MODELS Download
SLLM267A.ZIP (52 KB) - IBIS Model
SIMULATION MODELS Download
SLLM277A.ZIP (52 KB) - IBIS Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

REFERENCE DESIGNS Download
High accuracy analog input module reference design with 16-bit 1-MSPS dual simultaneous-sampling ADC
TIDA-01576 — This reference design accurately measures 16-channel AC voltage and current inputs using a precision 16-bit SAR ADC over a wide input range. This range covers protection and measurement requirements (including sampling requirements as per IEC 61850-9-2), which simplifies system design and improves (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Isolated, High-Accuracy Analog Input Module Reference Design Using 16-Bit ADC and Digital Isolator
TIDA-01214 — This reference design provides accurate measurements of AC voltage and current inputs using a precision 16-bit SAR ADC over a wide input range, covering protection and measurement range (including sampling requirements of IEC 61850-9-2), simplifying system design and improving trip time performance (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOIC (DW) 16 View options
SOIC (DWW) 16 View options

Ordering & quality

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