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ISO7731 ACTIVE Robust EMC, triple-channel, 2/1, reinforced digital isolator Pin-to-pin upgrade with higher isolation, stronger CMTI, wider supply range and better immunity

Product details

Integrated isolated power No Number of channels (#) 3 Forward/reverse channels 2/1 Isolation rating (Vrms) 2500 Data rate (Max) (Mbps) 25 Rating Catalog Surge voltage capability (Vpk) 4000 Current consumption per channel (DC) (Typ) (mA) 4.17 Operating temperature range (C) -40 to 125 Default output High Supply voltage (Max) (V) 5 Supply voltage (Min) (V) 3.3 Propagation delay (Typ) (ns) 32
Integrated isolated power No Number of channels (#) 3 Forward/reverse channels 2/1 Isolation rating (Vrms) 2500 Data rate (Max) (Mbps) 25 Rating Catalog Surge voltage capability (Vpk) 4000 Current consumption per channel (DC) (Typ) (mA) 4.17 Operating temperature range (C) -40 to 125 Default output High Supply voltage (Max) (V) 5 Supply voltage (Min) (V) 3.3 Propagation delay (Typ) (ns) 32
SOIC (DW) 16 77 mm² 7.52 x 10.28
  • 25 and 150-Mbps Signaling Rate Options
    • Low Channel-to-Channel Output Skew;
      1 ns Maximum
    • Low Pulse-Width Distortion (PWD);
      2 ns Maximum
    • Low Jitter Content; 1 ns Typical at 150 Mbps
  • Typical 25-Year Life at Rated Working Voltage
    (See Application Note SLLA197 and Figure 19)
  • 4-kV ESD Protection
  • Operate With 3.3-V or 5-V Supplies
  • 3.3-V and 5-V Level Translation
  • High Electromagnetic Immunity
    (See Application Note SLLA181)
  • –40°C to 125°C Operating Range
  • Safety and Regulatory Approvals
    • 4000-VPK Isolation per DIN V VDE V 0884-10
      and DIN EN 61010-1
    • 2500 VRMS Isolation for 1 minute per UL 1577
    • CSA Component Acceptance Notice 5A and
      IEC 60950-1 End Equipment Standard
  • 25 and 150-Mbps Signaling Rate Options
    • Low Channel-to-Channel Output Skew;
      1 ns Maximum
    • Low Pulse-Width Distortion (PWD);
      2 ns Maximum
    • Low Jitter Content; 1 ns Typical at 150 Mbps
  • Typical 25-Year Life at Rated Working Voltage
    (See Application Note SLLA197 and Figure 19)
  • 4-kV ESD Protection
  • Operate With 3.3-V or 5-V Supplies
  • 3.3-V and 5-V Level Translation
  • High Electromagnetic Immunity
    (See Application Note SLLA181)
  • –40°C to 125°C Operating Range
  • Safety and Regulatory Approvals
    • 4000-VPK Isolation per DIN V VDE V 0884-10
      and DIN EN 61010-1
    • 2500 VRMS Isolation for 1 minute per UL 1577
    • CSA Component Acceptance Notice 5A and
      IEC 60950-1 End Equipment Standard

The ISO7230 and ISO7231 are triple-channel digital isolators each with multiple channel configurations and output enable functions. These devices have logic input and output buffers separated by TI’s silicon dioxide (SiO2) isolation barrier. Used in conjunction with isolated power supplies, these devices block high voltage, isolate grounds, and prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry.

The ISO7230 and ISO7231 are triple-channel digital isolators each with multiple channel configurations and output enable functions. These devices have logic input and output buffers separated by TI’s silicon dioxide (SiO2) isolation barrier. Used in conjunction with isolated power supplies, these devices block high voltage, isolate grounds, and prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry.

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Technical documentation

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Type Title Date
* Data sheet ISO723xx High-Speed, Triple-Channel Digital Isolators datasheet (Rev. K) 15 Oct 2015
Certificate VDE Certificate for Basic Isolation for DIN VDE V 0884-11:2017-01 (Rev. S) 03 Aug 2021
Application note Digital Isolator Design Guide (Rev. C) 12 Jul 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
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
Application note Considerations for Selecting Digital Isolators 24 Jul 2018
User guide Triple- and Quad-Channel Digital Isolator EVM (Rev. A) 27 Sep 2011

Design & development

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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 (...)

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Evaluation board

ISO723X724XEVM — ISO723X724XEVM Evaluation Module

The ISO723X724X evaluation module (EVM) supports the rapid, parametric evaluation of the Triple and Quad Digital Isolators. The EVM will be delivered with an ISO7241C soldered on the board. If another device is desired, please order samples from www.ti.com. If you do not have the capability to (...)

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Limit: 5
Development kit

LAUNCHXL-F28379D — C2000 Delfino MCU F28379D LaunchPad™ development kit

LAUNCHXL-F28379D is a low-cost evaluation and development tool for the TMS320F2837xDTMS320F2837xS, and TMS320F2807x products in the TI MCU LaunchPad™ development kit ecosystem which is compatible with various plug-on BoosterPacks (suggested under the recommended BoosterPack™ Plug-in (...)

Simulation model

ISO723X IBIS Model

SLLM166.ZIP (15 KB) - IBIS Model
Package Pins Download
SOIC (DW) 16 View options

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