Product details

Integrated isolated power No Number of channels (#) 4 Forward/reverse channels 3 forward / 1 reverse Isolation rating (Vrms) 3000 Data rate (Max) (Mbps) 25 Rating Automotive Surge voltage capability (Vpk) 7800 Current consumption per channel (DC) (Typ) (mA) 0.9 Current consumption per channel (1 Mbps) (Typ) (mA) 0.9 Operating temperature range (C) -40 to 125 Default output High, Low Supply voltage (Max) (V) 5 Supply voltage (Min) (V) 3.3 Propagation delay (Typ) (ns) 31
Integrated isolated power No Number of channels (#) 4 Forward/reverse channels 3 forward / 1 reverse Isolation rating (Vrms) 3000 Data rate (Max) (Mbps) 25 Rating Automotive Surge voltage capability (Vpk) 7800 Current consumption per channel (DC) (Typ) (mA) 0.9 Current consumption per channel (1 Mbps) (Typ) (mA) 0.9 Operating temperature range (C) -40 to 125 Default output High, Low Supply voltage (Max) (V) 5 Supply voltage (Min) (V) 3.3 Propagation delay (Typ) (ns) 31
SOIC (DW) 16 77 mm² 10.3 x 7.5
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM Classification Level 3A
    • Device CDM Classification Level C6
  • Signaling Rate: 25 Mbps
  • Integrated Noise Filter on the Inputs
  • Default Output High and Low Options
  • Low Power Consumption, Typical ICC per Channel at 1 Mbps:
    • ISO7340-Q1: 0.9 mA (5-V Supplies),
      0.7 mA (3.3-V Supplies)
    • ISO7341-Q1: 1.2 mA (5-V Supplies),
      0.9 mA (3.3-V Supplies)
    • ISO7342-Q1: 1.3 mA (5-V Supplies),
      0.9 mA (3.3-V Supplies)
  • Low Propagation Delay: 31 ns
    Typical (5-V Supplies)
  • 3.3-V and 5-V Level Translation
  • 70-KV/µs Transient Immunity, Typical (5-V Supplies)
  • Robust Electromagnetic Compatibility (EMC)
    • System-level ESD, EFT, and Surge Immunity
    • Low Emissions
  • Operates from 3.3-V and 5-V Supplies
  • Wide-Body SOIC-16 Package
  • Safety-Related Certifications:
    • 4242-VPK Basic Isolation per DIN V VDE V 0884-10 and DIN EN 61010-1
    • 3-KVRMS Isolation for 1 minute per UL 1577
    • CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 61010-1 End Equipment Standards
    • GB4943.1-2011 CQC Certified
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM Classification Level 3A
    • Device CDM Classification Level C6
  • Signaling Rate: 25 Mbps
  • Integrated Noise Filter on the Inputs
  • Default Output High and Low Options
  • Low Power Consumption, Typical ICC per Channel at 1 Mbps:
    • ISO7340-Q1: 0.9 mA (5-V Supplies),
      0.7 mA (3.3-V Supplies)
    • ISO7341-Q1: 1.2 mA (5-V Supplies),
      0.9 mA (3.3-V Supplies)
    • ISO7342-Q1: 1.3 mA (5-V Supplies),
      0.9 mA (3.3-V Supplies)
  • Low Propagation Delay: 31 ns
    Typical (5-V Supplies)
  • 3.3-V and 5-V Level Translation
  • 70-KV/µs Transient Immunity, Typical (5-V Supplies)
  • Robust Electromagnetic Compatibility (EMC)
    • System-level ESD, EFT, and Surge Immunity
    • Low Emissions
  • Operates from 3.3-V and 5-V Supplies
  • Wide-Body SOIC-16 Package
  • Safety-Related Certifications:
    • 4242-VPK Basic Isolation per DIN V VDE V 0884-10 and DIN EN 61010-1
    • 3-KVRMS Isolation for 1 minute per UL 1577
    • CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 61010-1 End Equipment Standards
    • GB4943.1-2011 CQC Certified

The ISO734x-Q1 family of devices provides galvanic isolation up to 3000 VRMS for 1 minute per UL 1577 and 4242 VPK per VDE V 0884-10. These devices have four isolated channels comprised of logic input and output buffers separated by a silicon dioxide (SiO2) insulation barrier.

The ISO7340-Q1 device has four channels in forward direction, the ISO7341-Q1 device has three forward and one reverse-direction channels, and the ISO7342-Q1 device has two forward and two reverse-direction channels. In case of input power or signal loss, the default output is low for orderable part numbers with suffix F and high for orderable part numbers without 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 a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. The ISO734x-Q1 device has integrated noise filter for harsh industrial environment where short noise pulses may be present at the device input pins. The ISO734x-Q1 device has TTL input thresholds and operates from 3-V to 5.5-V supply levels. Through innovative chip design and layout techniques, electromagnetic compatibility of the ISO734x-Q1 family of devices has been significantly enhanced to enable system-level ESD, EFT, surge, and emissions compliance.

The ISO734x-Q1 family of devices provides galvanic isolation up to 3000 VRMS for 1 minute per UL 1577 and 4242 VPK per VDE V 0884-10. These devices have four isolated channels comprised of logic input and output buffers separated by a silicon dioxide (SiO2) insulation barrier.

The ISO7340-Q1 device has four channels in forward direction, the ISO7341-Q1 device has three forward and one reverse-direction channels, and the ISO7342-Q1 device has two forward and two reverse-direction channels. In case of input power or signal loss, the default output is low for orderable part numbers with suffix F and high for orderable part numbers without 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 a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. The ISO734x-Q1 device has integrated noise filter for harsh industrial environment where short noise pulses may be present at the device input pins. The ISO734x-Q1 device has TTL input thresholds and operates from 3-V to 5.5-V supply levels. Through innovative chip design and layout techniques, electromagnetic compatibility of the ISO734x-Q1 family of devices has been significantly enhanced to enable system-level ESD, EFT, surge, and emissions compliance.

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Technical documentation

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Type Title Date
* Data sheet ISO734x-Q1 Robust EMC, Low-Power, Quad-Channel Digital Isolators datasheet (Rev. B) 30 May 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 CQC Certification (Rev. G) 19 Aug 2021
Certificate VDE Certificate for Basic Isolation for DIN VDE V 0884-11:2017-01 (Rev. S) 03 Aug 2021
Certificate CSA Certification (Rev. Q) 14 Jun 2021
White paper Distance Through Insulation: How Digital Isolators Meet Certification Requiremen 11 Jun 2021
Application note How to Replace Optocouplers with Digital Isolators in Standard Interface Circuit (Rev. A) 19 May 2021
EVM User's 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 Isolation Glossary (Rev. A) 19 Sep 2017
User guide ISO73xx Triple/Quad Digital Isolator Evaluation Module 24 Sep 2014

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- (...)

Evaluation board

ISO7342CEVM — Quad-channel digital isolator evaluation module

The ISO7342CEVM helps you evaluate device performance, supporting the fast development and analysis of isolated systems. The EVM supports evaluation of any our TI ISO73xx triple- or quad-channel digital isolators in a 16-pin SOIC (DW) package.


The ISO7342C digital isolator provides galvanic (...)

Simulation model

ISO7341C IBIS Model

SLLM250.ZIP (34 KB) - IBIS Model
Simulation model

ISO7341FC IBIS Model

SLLM261.ZIP (33 KB) - IBIS Model
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SOIC (DW) 16 View options

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