Product details

Rating Catalog Integrated isolated power No Isolation rating Basic, Reinforced Number of channels 2 Forward/reverse channels 2 forward / 0 reverse Default output High, Low Data rate (max) (Mbps) 100 Surge isolation voltage (VIOSM) (VPK) 8000, 12800 Transient isolation voltage (VIOTM) (VPK) 4242, 7071, 8000 Withstand isolation voltage (VISO) (Vrms) 3000, 5000 CMTI (min) (V/µs) 85000 Operating temperature range (°C) -55 to 125 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 2.25 Propagation delay time (typ) (µs) 0.0107 Current consumption per channel (DC) (typ) (mA) 0.95 Current consumption per channel (1 Mbps) (typ) (mA) 1.5 Creepage (min) (mm) 4, 8, 8.5 Clearance (min) (mm) 4, 8, 8.5
Rating Catalog Integrated isolated power No Isolation rating Basic, Reinforced Number of channels 2 Forward/reverse channels 2 forward / 0 reverse Default output High, Low Data rate (max) (Mbps) 100 Surge isolation voltage (VIOSM) (VPK) 8000, 12800 Transient isolation voltage (VIOTM) (VPK) 4242, 7071, 8000 Withstand isolation voltage (VISO) (Vrms) 3000, 5000 CMTI (min) (V/µs) 85000 Operating temperature range (°C) -55 to 125 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 2.25 Propagation delay time (typ) (µs) 0.0107 Current consumption per channel (DC) (typ) (mA) 0.95 Current consumption per channel (1 Mbps) (typ) (mA) 1.5 Creepage (min) (mm) 4, 8, 8.5 Clearance (min) (mm) 4, 8, 8.5
SOIC (D) 8 29.4 mm² 4.9 x 6 SOIC (DW) 16 106.09 mm² 10.3 x 10.3 SOIC (DWV) 8 67.275 mm² 5.85 x 11.5
  • 100 Mbps data rate
  • Robust isolation barrier:
    • >30-Year projected lifetime at 1.5 kVRMS working voltage
    • Up to 5000 VRMS Isolation Rating
    • Up to 12.8 kV surge capability
    • ±100 kV/µs Typical CMTI
  • Wide supply range: 2.25 V to 5.5 V
  • 2.25-V to 5.5-V level translation
  • Default output High (ISO772x) and Low (ISO772xF) Options
  • 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
  • Robust electromagnetic compatibility (EMC)
    • System-Level ESD, EFT, and surge immunity
    • ±8 kV IEC 61000-4-2 contact discharge protection across isolation barrier
    • Low emissions
  • Wide-SOIC (DW-16, DWV-8) and Narrow-SOIC (D-8) package options
  • Automotive Version Available: ISO772x-Q1
  • Safety-Related Certifications
    • DIN EN IEC 60747-17 (VDE 0884-17)
    • UL 1577 component recognition program
    • IEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1 certifications
  • 100 Mbps data rate
  • Robust isolation barrier:
    • >30-Year projected lifetime at 1.5 kVRMS working voltage
    • Up to 5000 VRMS Isolation Rating
    • Up to 12.8 kV surge capability
    • ±100 kV/µs Typical CMTI
  • Wide supply range: 2.25 V to 5.5 V
  • 2.25-V to 5.5-V level translation
  • Default output High (ISO772x) and Low (ISO772xF) Options
  • 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
  • Robust electromagnetic compatibility (EMC)
    • System-Level ESD, EFT, and surge immunity
    • ±8 kV IEC 61000-4-2 contact discharge protection across isolation barrier
    • Low emissions
  • Wide-SOIC (DW-16, DWV-8) and Narrow-SOIC (D-8) package options
  • Automotive Version Available: ISO772x-Q1
  • Safety-Related Certifications
    • DIN EN IEC 60747-17 (VDE 0884-17)
    • UL 1577 component recognition program
    • IEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1 certifications

The ISO772x devices are high-performance, dual-channel digital isolators with 5000 VRMS (DW and DWV packages) and 3000 VRMS (D package) isolation ratings per UL 1577. This family includes devices with reinforced insulation ratings according to VDE, CSA, TUV and CQC.The ISO7721B device is designed for applications that require basic insulation ratings only.

The ISO772x devices provide 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 double capacitive silicon dioxide (SiO2) insulation barrier. The ISO7720 device has both channels in the same direction while the ISO7721 device has both channels in the opposite direction. In the event of input power or signal loss, the default output is high for devices without suffix F and low for devices with suffix F. See the Device Functional Modes section for further details.

Used in conjunction with isolated power supplies, these devices help prevent noise currents on data buses, such as RS-485, RS-232, and CAN , from damaging sensitive circuitry. Through innovative chip design and layout techniques, the electromagnetic compatibility of the ISO772x devices has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. The ISO772x family of devices is available in 16-pin SOIC wide-body (DW), 8-pin SOIC wide-body (DWV), and 8-pin SOIC narrow-body (D) packages.

The ISO772x devices are high-performance, dual-channel digital isolators with 5000 VRMS (DW and DWV packages) and 3000 VRMS (D package) isolation ratings per UL 1577. This family includes devices with reinforced insulation ratings according to VDE, CSA, TUV and CQC.The ISO7721B device is designed for applications that require basic insulation ratings only.

The ISO772x devices provide 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 double capacitive silicon dioxide (SiO2) insulation barrier. The ISO7720 device has both channels in the same direction while the ISO7721 device has both channels in the opposite direction. In the event of input power or signal loss, the default output is high for devices without suffix F and low for devices with suffix F. See the Device Functional Modes section for further details.

Used in conjunction with isolated power supplies, these devices help prevent noise currents on data buses, such as RS-485, RS-232, and CAN , from damaging sensitive circuitry. Through innovative chip design and layout techniques, the electromagnetic compatibility of the ISO772x devices has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. The ISO772x family of devices is available in 16-pin SOIC wide-body (DW), 8-pin SOIC wide-body (DWV), and 8-pin SOIC narrow-body (D) packages.

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Technical documentation

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Type Title Date
* Data sheet ISO772x High-Speed, Robust EMC, Reinforced and Basic Dual-Channel Digital Isolators datasheet (Rev. G) PDF | HTML 07 May 2024
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 30 Apr 2024
Certificate VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. S) 29 Feb 2024
White paper Improve Your System Performance by Replacing Optocouplers with Digital Isolators (Rev. C) PDF | HTML 07 Sep 2023
Certificate CQC Certificate for ISOxxDWx (Rev. J) 27 Mar 2023
Certificate CSA Certificate for ISO77xxDW 13 Mar 2023
Certificate CSA Certificate for ISO77xxDWV 13 Mar 2023
Certificate CSA Certificate for ISO77xxD 03 Mar 2023
Application note IEC60601-1-2 Compliant Dig. Iso Design W/ 16-kV Contact Discharge ESD Protection PDF | HTML 16 Feb 2023
Certificate CQC Certificate for ISOxxD (Rev. A) 07 Feb 2023
Certificate CQC Certificate for ISOxxDWV (Rev. A) 07 Feb 2023
Certificate TUV Certificate for Isolation Devices (Rev. K) 05 Aug 2022
Certificate UL Certificate of Compliance File E181974 Vol 4 Sec 6 (Rev. P) 05 Aug 2022
White paper Why are Digital Isolators Certified to Meet Electrical Equipment Standards? 16 Nov 2021
White paper Distance Through Insulation: How Digital Isolators Meet Certification Requiremen PDF | HTML 11 Jun 2021
EVM User's guide Universal Digital Isolator Evaluation Module PDF | HTML 04 Mar 2021
Functional safety information ISO7720-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA 18 Jun 2020
User guide ISO77xxD Single- and Dual-Digital Isolator Evaluation Module (Rev. A) 25 Feb 2019
Application brief Considerations for Selecting Digital Isolators 24 Jul 2018
User guide ISO77xxDWV Dual-Digital Isolator Evaluation Module 21 Jun 2018
Analog Design Journal How to reduce radiated emissions of digital isolators for systems with RF module 26 Mar 2018
Application brief How to Design Isolated Comparators for ±48V, 110V and 240V DC and AC Detection (Rev. A) 14 Mar 2018
Application brief How To Simplify Isolated 24-V PLC Digital Input Module Designs (Rev. B) 14 Mar 2018
Application brief How to Improve Speed and Reliability of Isolated Digital Inputs in Motor Drives 16 Dec 2017
Application note Isolation Glossary (Rev. A) 19 Sep 2017
User guide ISO77xx Triple/Quad Digital Isolator Evaluation Module User's Guide 05 May 2016

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: PDF | HTML
Not available on TI.com
Evaluation board

ISO7721DEVM — Evaluation module for the ISO7721 high-speed, robust EMC dual-channel digital isolator in D package

The ISO7721DEVM is an evaluaiton module (EVM) used to evaluate the ISO7721 high-performance, reinforced dual-channel digital isolator in an 8-pin narrow SOIC package (package code, D). The EVM features enough test points and jumper options for you to evaluate the device with minimal (...)
User guide: PDF
Not available on TI.com
Evaluation board

ISO7721DWVEVM — Evaluation module for the ISO7721 high-speed robust EMC two-channel digital isolator in DWV package

The ISO7721DWVEVM is an evaluaiton module (EVM) used to evaluate the ISO7721 high-performance, reinforced two-channel digital isolator in an 8-pin wide-body (WB) SOIC package (package code, DWV). The EVM features enough test points and jumper options for you to evaluate the device with (...)
User guide: PDF
Not available on TI.com
Evaluation board

ISO7741EVM — ISO7741 high-speed, robust EMC quad-channel digital isolator evaluation module

The ISO7741EVM is an evaluaiton module (EVM) to evaluate the ISO7741. The ISO7741 is a high-performance, reinforced quad-channel digital isolator in a wide-body SOIC package (package code DW). The EVM features enough test points and jumber options for you to evaluate the (...)
User guide: PDF
Not available on TI.com
Simulation model

ISO7720 IBIS Model (Rev. C)

SLLM333C.ZIP (52 KB) - IBIS Model
Simulation model

ISO7720 PSpice Transient Model

SLLM481.ZIP (171 KB) - PSpice Model
Reference designs

TIDA-010065 — High-efficiency, low-emission, isolated DC/DC converter-based analog input module reference design

This reference design is a simplified architecture for generating an isolated power supply for isolated amplifiers for measuring isolated voltages and currents. A fully integrated DC/DC converter with reinforced isolation operating from a 5-V input with configurable 5-V or 5.4-V output (headroom (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-01576 — High accuracy analog input module reference design with 16-bit 1-MSPS dual simultaneous-sampling ADC

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 (...)
Design guide: PDF
Schematic: PDF
Reference designs

PMP40690 — 4-kW interleaved CCM totem pole bridgeless PFC reference design using C2000™ MCU and GaN

This reference design is a 4-kW interleaved CCM totem pole (TTPL) bridgeless PFC reference design using a 64-pin C2000™ microcontroller, LM3410 gallium nitride device and TMCS1100 hall sensor. It is based on TIDM-02008 bidirectional interleaved CCM TTPL bridgeless PFC reference (...)
Test report: PDF
Schematic: PDF
Reference designs

TIDA-010036 — One-phase shunt electricity meter reference design using standalone ADCs

This reference design implements Class 0.5 single-phase energy measurement using standalone multi-channel analog-to-digital converters (ADC) to sample a shunt current sensor. With the combination of the shunt sensor and a compact magnetically immune power supply, the design provides protection (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-010037 — High accuracy split-phase CT electricity meter reference design using standalone ADCs

This reference design implements Class 0.1 split-phase energy measurement using high-performance, multi-channel analog-to-digital converters (ADC). The independent ADC samples the output of current transformers (CT) at 8 kHz to measure the current and voltage of each leg of the AC mains. The (...)
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
SOIC (D) 8 Ultra Librarian
SOIC (DW) 16 Ultra Librarian
SOIC (DWV) 8 Ultra Librarian

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