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ISO7740 ACTIVE Robust EMC, quad-channel, 4/0, 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 (#) 4 Forward/reverse channels 4 forward / 0 reverse Isolation rating (Vrms) 4200 Data rate (Max) (Mbps) 150 Rating Catalog Surge voltage capability (Vpk) 5200 Current consumption per channel (DC) (Typ) (mA) 1.03 Current consumption per channel (1 Mbps) (Typ) (mA) 1.03 Operating temperature range (C) -40 to 125 Default output Low Supply voltage (Max) (V) 5 Supply voltage (Min) (V) 2.7 Propagation delay (Typ) (ns) 7
Integrated isolated power No Number of channels (#) 4 Forward/reverse channels 4 forward / 0 reverse Isolation rating (Vrms) 4200 Data rate (Max) (Mbps) 150 Rating Catalog Surge voltage capability (Vpk) 5200 Current consumption per channel (DC) (Typ) (mA) 1.03 Current consumption per channel (1 Mbps) (Typ) (mA) 1.03 Operating temperature range (C) -40 to 125 Default output Low Supply voltage (Max) (V) 5 Supply voltage (Min) (V) 2.7 Propagation delay (Typ) (ns) 7
SOIC (DW) 16 77 mm² 10.3 x 7.5
  • Signaling Rate: 150 Mbps
  • Low Power Consumption, Typical ICC per Channel
    (3.3-V Supplies):
    • ISO7640FM: 2 mA at 25 Mbps
    • ISO7641FM: 2.4 mA at 25 Mbps
  • Low Propagation Delay: 7-ns Typical
  • Output Defaults to Low-State in Fail-
    Safe Mode
  • Wide Temperature Range: –40°C to 125°C
  • 50-KV/µs Transient Immunity, Typical
  • Long Life With SiO2 Isolation
    Barrier
  • Operates From 2.7-V, 3.3-V, and 5-V Supply and
    Logic Levels
  • Wide Body SOIC-16 Package
  • Safety and Regulatory Approvals
    • 6000 VPK / 4243 VRMS for 1 Minute per UL
      1577
    • VDE 6000 VPK Transient Overvoltage, 1414
      VPK Working Voltage
      per DIN V VDE V 0884-10 (VDE V 0884-
      10):2006-12
    • CSA Component Acceptance Notice 5A, IEC
      60950-1, IEC 61010-1, and IEC 60601-1 End
      Equipment Standards
    • TUV 5 KVRMS Reinforced Insulation per
      EN/UL/CSA 60950-1 and EN/UL/CSA 61010-1
    • CQC Reinforced Insulation per GB4943.1-
      2011
  • Signaling Rate: 150 Mbps
  • Low Power Consumption, Typical ICC per Channel
    (3.3-V Supplies):
    • ISO7640FM: 2 mA at 25 Mbps
    • ISO7641FM: 2.4 mA at 25 Mbps
  • Low Propagation Delay: 7-ns Typical
  • Output Defaults to Low-State in Fail-
    Safe Mode
  • Wide Temperature Range: –40°C to 125°C
  • 50-KV/µs Transient Immunity, Typical
  • Long Life With SiO2 Isolation
    Barrier
  • Operates From 2.7-V, 3.3-V, and 5-V Supply and
    Logic Levels
  • Wide Body SOIC-16 Package
  • Safety and Regulatory Approvals
    • 6000 VPK / 4243 VRMS for 1 Minute per UL
      1577
    • VDE 6000 VPK Transient Overvoltage, 1414
      VPK Working Voltage
      per DIN V VDE V 0884-10 (VDE V 0884-
      10):2006-12
    • CSA Component Acceptance Notice 5A, IEC
      60950-1, IEC 61010-1, and IEC 60601-1 End
      Equipment Standards
    • TUV 5 KVRMS Reinforced Insulation per
      EN/UL/CSA 60950-1 and EN/UL/CSA 61010-1
    • CQC Reinforced Insulation per GB4943.1-
      2011

ISO7640FM and ISO7641FM provide galvanic isolation up to 6 KVPK for 1 minute per UL and VDE. These devices are also certified up to 5-KVRMS Reinforced isolation at a working voltage of 400 VRMS per end equipment standards EN/UL/CSA 60950-1 and 61010-1. ISO7640F and ISO7641F are quad-channel isolators; ISO7640F has four forward and ISO7641F has three forward and one reverse-direction channels. Suffix F indicates that output defaults to Low-state in fail-safe conditions. M-Grade devices are high-speed isolators capable of 150-Mbps data rate with fast propagation delays.

Each isolation channel has a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. The devices have TTL input thresholds and can operate from 2.7-V, 3.3-V, and 5-V supplies. All inputs are 5-V tolerant when supplied from 3.3-V or 2.7-V supplies.

ISO7640FM and ISO7641FM provide galvanic isolation up to 6 KVPK for 1 minute per UL and VDE. These devices are also certified up to 5-KVRMS Reinforced isolation at a working voltage of 400 VRMS per end equipment standards EN/UL/CSA 60950-1 and 61010-1. ISO7640F and ISO7641F are quad-channel isolators; ISO7640F has four forward and ISO7641F has three forward and one reverse-direction channels. Suffix F indicates that output defaults to Low-state in fail-safe conditions. M-Grade devices are high-speed isolators capable of 150-Mbps data rate with fast propagation delays.

Each isolation channel has a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. The devices have TTL input thresholds and can operate from 2.7-V, 3.3-V, and 5-V supplies. All inputs are 5-V tolerant when supplied from 3.3-V or 2.7-V supplies.

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Technical documentation

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Type Title Date
* Data sheet ISO764xFM Low-Power Quad-Channel Digital Isolators datasheet (Rev. G) 29 Jan 2015
White paper Why are Digital Isolators Certified to Meet Electrical Equipment Standards? 16 Nov 2021
Certificate TUV Certificate for Isolation Devices (Rev. J) 23 Aug 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
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 Considerations for Selecting Digital Isolators 24 Jul 2018
EVM User's guide Triple- and Quad-Channel Digital Isolator EVM (Rev. A) 27 Sep 2011

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- (...)

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 (...)

Simulation model

ISO76xx IBIS Model (Rev. A)

SLLM158A.ZIP (58 KB) - IBIS Model
Reference designs

TIDA-00440 — Leakage Current Measurement Reference Design for Determining Insulation Resistance

This reference design measures insulation resistance up to 100 MΩ. It has an on-board isolated 500-Vdc power supply and an isolated signal conditioning circuit to measure the leakage current. This design is useful to find leakage due to insulation breakdown in transformer and motor windings.
Reference designs

TIDA-00106 — 16-Bit 1-MSPS Data Acquisition Reference Design, Isolated for High-Voltage Common-Mode Rejection

The circuit represents a high-performance data acquisition (DAQ) solution suitable for processing input signals (up to ±12 V) superimposed on large common-mode offsets (tested up to 155 Vp-p from dc to approximately 15 kHz) relative to the ground potential of the system's main power supply. (...)
Package Pins Download
SOIC (DW) 16 View options

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