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ISO7340C

ACTIVE

4-channel, 4/0, digital isolator

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NEW ISO6440 ACTIVE Robust EMC, reinforced/Basic 4-channel, 4/0, digital isolator with 250kV/us CMTI, 150Mbps Pin-to-pin cost-effective solution; 250kV/us CMTI and 150 Mbps that supports most digital isolation applications

ISO7340C

ACTIVE
Data sheet Order now

Product details

Rating Catalog Integrated isolated power No Number of channels 4 Forward/reverse channels 4 forward / 0 reverse Data rate (max) (Mbps) 25 Protocols GPIO, PWM, SPI, UART Propagation delay time (typ) (ns) 31 Certifications CQC, CSA, DIN Isolation rating Basic Withstand isolation voltage (VISO) (Vrms) 3000 Surge isolation voltage (VIOSM) (kVPK) 7.8 CMTI (min) (kV/µs) 25 Default output High Creepage (min) (mm) 8 Current consumption per channel (DC) (typ) (mA) 0.68 Current consumption per channel (1 Mbps) (typ) (mA) 0.68 Operating temperature range (°C) -40 to 125 Transient isolation voltage (VIOTM) (VPK) 4242 Clearance (min) (mm) 8
Rating Catalog Integrated isolated power No Number of channels 4 Forward/reverse channels 4 forward / 0 reverse Data rate (max) (Mbps) 25 Protocols GPIO, PWM, SPI, UART Propagation delay time (typ) (ns) 31 Certifications CQC, CSA, DIN Isolation rating Basic Withstand isolation voltage (VISO) (Vrms) 3000 Surge isolation voltage (VIOSM) (kVPK) 7.8 CMTI (min) (kV/µs) 25 Default output High Creepage (min) (mm) 8 Current consumption per channel (DC) (typ) (mA) 0.68 Current consumption per channel (1 Mbps) (typ) (mA) 0.68 Operating temperature range (°C) -40 to 125 Transient isolation voltage (VIOTM) (VPK) 4242 Clearance (min) (mm) 8
SOIC (DW) 16 106.09 mm² (10.3 mm × 10.3 mm)
  • Signaling Rate: 25 Mbps
  • Integrated Noise Filter on the Inputs
  • Default Output and Options
  • Low Power Consumption, Typical ICC per Channel at 1 Mbps:
    • ISO7340x: 0.9 mA (5-V Supplies),
      0.7 mA (3.3-V Supplies)
    • ISO7341x: 1.2 mA (5-V Supplies),
      0.9 mA (3.3-V Supplies)
    • ISO7342x: 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
  • Wide Temperature Range: –40°C to 125°C
  • 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

All trademarks are the property of their respective owners.

  • Signaling Rate: 25 Mbps
  • Integrated Noise Filter on the Inputs
  • Default Output and Options
  • Low Power Consumption, Typical ICC per Channel at 1 Mbps:
    • ISO7340x: 0.9 mA (5-V Supplies),
      0.7 mA (3.3-V Supplies)
    • ISO7341x: 1.2 mA (5-V Supplies),
      0.9 mA (3.3-V Supplies)
    • ISO7342x: 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
  • Wide Temperature Range: –40°C to 125°C
  • 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

All trademarks are the property of their respective owners.

The ISO734x 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 ISO7340x device has four channels in forward direction, the ISO7341x device has three forward and one reverse-direction channels, and the ISO7342x device has two forward and two reverse-direction channels. In case of input power or signal loss, the default output is for devices with suffix and for devices without suffix . See the 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 device has integrated noise filter for harsh industrial environment where short noise pulses may be present at the device input pins. The ISO734x 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 family of devices has been significantly enhanced to enable system-level ESD, EFT, surge, and emissions compliance.

For all available packages, see the orderable addendum at the end of the datasheet.

The ISO734x 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 ISO7340x device has four channels in forward direction, the ISO7341x device has three forward and one reverse-direction channels, and the ISO7342x device has two forward and two reverse-direction channels. In case of input power or signal loss, the default output is for devices with suffix and for devices without suffix . See the 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 device has integrated noise filter for harsh industrial environment where short noise pulses may be present at the device input pins. The ISO734x 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 family of devices has been significantly enhanced to enable system-level ESD, EFT, surge, and emissions compliance.

For all available packages, see the orderable addendum at the end of the datasheet.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet ISO734x Robust EMC, Low-Power, Quad-Channel Digital Isolators datasheet (Rev. G) PDF | HTML Jan 19, 2017
Certificate VDE Certificate for Basic Isolation for DIN EN IEC 60747-17 (Rev. AA) Jun 11, 2026
Certificate UL Certificate of Compliance File E181974 Vol 4 Sec 6 (Rev. S) May 7, 2026
White paper Improve Your System Performance by Replacing Optocouplers with Digital Isolators (Rev. D) PDF | HTML Nov 7, 2025
Certificate CQC Certificate for ISOxxDWx (Rev. K) Aug 18, 2025
Application note Digital Isolator Design Guide (Rev. G) PDF | HTML Sep 13, 2023
Certificate CSA Certificate for ISO73xxDW Feb 22, 2023
White paper Why are Digital Isolators Certified to Meet Electrical Equipment Standards? Nov 16, 2021
White paper Distance Through Insulation: How Digital Isolators Meet Certification Requiremen PDF | HTML Jun 11, 2021
Application note Isolation Glossary (Rev. A) Sep 19, 2017

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- (...)

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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 (...)

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Simulation model

ISO7340C IBIS Model (Rev. A)

SLLM249A.ZIP (33 KB) - IBIS model
Supported products & hardware
Reference design

TIDA-00737 — Capacitor Bank Control and HMI Subsystem Reference Design for Automatic Power Factor Controller

This reference design demonstrates the working of various functional blocks of an automatic power factor controller (PFC) used in MV/LV electrical distribution. This includes accurate measurement and computation of voltages, currents, power and power factor, display of measured parameters (...)

Supported products & hardware
Reference design

TIDA-01536 — Single-Channel, Isolated, 3-Wire Current Loop Transmitter Reference Design

This single-channel, input-isolated, three-wire current loop transmitter reference design provides a current range of 0 mA to 20 mA while operating on a 24-V supply. The design features a precision digital-to-analog converter (DAC) with an internal reference voltage, integrated three-wire current (...)

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Package Pins CAD symbols, footprints & 3D models
SOIC (DW) 16 Ultra Librarian
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