A newer version of this product is available
open-in-new Compare products
Exact equivalent in functionality and parametrics to the compared device:
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
Top

Product details

Parameters

Integrated isolated power No Number of channels (#) 4 Forward/reverse channels 4/0 Isolation rating (Vrms) 2500 Data rate (Max) (Mbps) 50 Rating Catalog Surge voltage capability (Vpk) 4000 Current consumption per channel (DC) (Typ) (mA) 1.025 Current consumption per channel (1 Mbps) (Typ) (mA) 1.025 Operating temperature range (C) -40 to 125 Default output High Supply voltage (Max) (V) 5 Supply voltage (Min) (V) 2.7 Propagation delay (Typ) (ns) 23 open-in-new Find other Digital isolators

Package | Pins | Size

SSOP (DBQ) 16 29 mm² 4.9 x 6 open-in-new Find other Digital isolators

Features

  • Maximum Signaling Rate: 50 Mbps (With 5-V Supplies)
  • Robust Design With Integrated Noise Filter
  • Default Output Low Option (Suffix F)
  • Low Power Consumption, Typical ICC per Channel
    (With 3.3-V Supplies):
    • ISO7131: 1.5 mA at 1 Mbps,
      2.6 mA at 25 Mbps
    • ISO7140: 1 mA at 1 Mbps,
      2.3 mA at 25 Mbps
    • ISO7141: 1.3 mA at 1 Mbps,
      2.6 mA at 25 Mbps
  • Low Propagation Delay: 23-ns Typical
    (3.3-V Supplies)
  • 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
  • Small QSOP-16 Package
  • Safety and Regulatory Approvals
    • 2500-VRMS Isolation for 1 minute per UL 1577
    • 4242-VPK Isolation per DIN V VDE V 0884-10 (VDE V
      0884-10):2006-12, 566 VPK Working Voltage
    • CSA Component Acceptance Notice 5A, IEC 60950-1
      and IEC 61010-1 End Equipment Standards
    • CQC Certification per GB 4943.1-2011
open-in-new Find other Digital isolators

Description

ISO7131, ISO7140, and ISO7141 devices provide galvanic isolation up to 2500 VRMS for 1 minute per UL and 4242 VPK per VDE. ISO7131 has three channels with two forward and one reverse-direction channels. ISO7140 and ISO7141 are quad-channel isolators; ISO7140 has four forward channels, ISO7141 has three forward and one reverse-direction channels. These devices are capable of 50-Mbps maximum data rate with 5-V supplies and 40-Mbps maximum data rate with 3.3-V or 2.7-V supplies, with integrated filters on the inputs for noise-prone applications. The suffix F indicates that default output state is low; otherwise, the default output state is high.

Each isolation channel has a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. Used 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 a 2.7-V or 3.3-V supply.

open-in-new Find other Digital isolators
Download

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 12
Type Title Date
* Datasheet ISO71xxCC 4242-VPK Small-Footprint Low-Power Triple and Quad Channels Digital Isolators datasheet (Rev. F) Jan. 29, 2015
Technical articles How to select the right digital isolator for your design Oct. 21, 2020
White paper Improve Your System Performance by Replacing Optocouplers with Digital Isolators Oct. 12, 2020
Technical articles Isolation 101: How to find the right isolation solution for your application Feb. 11, 2020
Technical articles Why signal isolation matters in 48-V HEV/EV systems Nov. 20, 2019
More literature CSA Certification (Rev. P) Nov. 19, 2019
More literature VDE certificate for basic isolation for DIN VDE V 0884-11:2017-01 (Rev. Q) Sep. 20, 2019
More literature CQC Certification (Rev. F) Sep. 13, 2019
More literature UL Certification (Rev. N) Jul. 30, 2019
Technical articles Staying on budget: How digital isolators are transforming field transmitters May 24, 2019
Application note Considerations for Selecting Digital Isolators Jul. 24, 2018
User guide ISO71XXDBQ-EVM Mar. 06, 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
79
Description
The ISO71XXDBQ-EVM evaluation module (EVM) comes with the ISO7131CCDBQ device soldered down. You can remove this device and solder down any of the 4-channel ISO714xCCDBQ devices. This EVM lets you evaluate the isolator performance and parameters. For safety reasons, the EVM is not (...)
Features
  • User configurable for use with triple- and quad-channel ISO71xx isolators
  • Enables opposing channel testing with the ISO7131, ISO7141 and ISO7142
  • Same direction evaluation can be performed using the ISO7140
  • User-configurable load options for the input and output channels

Design tools & simulation

SIMULATION MODEL Download
SLLM215.ZIP (27 KB) - IBIS Model

Reference designs

REFERENCE DESIGNS Download
Differential Pulse Train Output (PTO) Programmable Logic Controller (PLC) Module Reference Design
TIDA-00766 — The differential Pulse Train Output (PTO) module TI Design illustrates the design of a differential high speed digital output module using RS-485 driver powered from the PLC backplane using isolated Fly-Buck power converter. The reference design is mainly used in positioning and motion control (...)
document-generic Schematic
REFERENCE DESIGNS Download
8-ch Isolated High Voltage Analog Input Module with ISOW7841 Reference Design
TIDA-01333 — The TIDA-01333 isolated high voltage analog input module reference design has eight channels supporting both, voltage and current measurement. In addition, 4 channels support common-mode voltages up to ±160V. Isolation of +5V line and the Serial Peripheral Interface  (SPI) communication (...)
document-generic Schematic
REFERENCE DESIGNS Download
High Speed Digital Output PLC Module Reference Design
TIDA-00319 — This high speed digital output module TI Design for programmable logic controllers (PLCs) illustrates the design of low-cost, simple high speed single-ended digital output module using standard low side driver and backplane powered using isolated power stage. High speed digital output modules are (...)
document-generic Schematic
REFERENCE DESIGNS Download
8-ch Isolated High Voltage Analog Input Module Reference Design
TIDA-00764 — The TIDA-00764 reference design is a high voltage analog input module with eight channels. Each channel can be used for both, voltage and current measurement. The TI Design uses the 16-bit analog-to-digital converter (ADC) ADS8681 that can handle input voltage of up to ±12.288V. This make any (...)
document-generic Schematic
REFERENCE DESIGNS Download
8-ch Parallel 0.5A Low Side Digital Output Module for PLC Reference Design
TIDA-00320 Digital Output Modules are a standard component in a PLC/PAC or DCS to control actuators, motors and other resistive, capacitive or inductive loads. Customers will benefit from this integrated protected low side driver with parallel interface as it makes the MCU interface easy to test together with (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
SSOP (DBQ) 16 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos

Related videos