CA-IS3740HW-Q1

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Automotive, Quad Channel Standard Digital Isolators

The CA‐IS374x‐Q1 devices are high‐performance four‐ channel, unidirectional digital isolators with up to 5kVRMS wide‐body package isolation rating and DC to 150Mbps ultra‐fast data rate. The CA‐IS374x‐Q1 devices offer high electromagnetic immunity and low emissions at low power consumption while isolating different ground domains Each isolation channel has a logic input and output buffer separated by capacitive silicon dioxide (SiO2) insulation barrier, the integrated Schmitt trigger on each input provide excellent noise immunity in automotive applications.

The CA‐IS374x‐Q1 family features default outputs. When the input is either not powered or is open‐circuit, the default output is low for devices with suffix L and high for devices with suffix H, see the Ordering Information for suffixes associated with each option.

The CA‐IS374x‐Q1 family devices are specified over the  ‐ 40°C to +125°C operating temperature range and are available in 16‐pin SOIC wide body package.

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  • Features

    Data Rate

    DC to 150Mbps

    Robust Galvanic Isolation of Digital Signals

    High lifetime: >40 years
    Up to 5000 VRMS isolation rating
    ±150 kV/μs typical CMTI

    Accepts 2.5V to 5.5V Supplies

    Schmitt Trigger Inputs

    Enable Control Input with Internal Pull-up

    Default Output High (CA-IS374xH-Q1) and Low (CA-IS374xL-Q1) Options

    No Start-Up Initialization Required

    Low Power Consumption

    1.5mA per channel at 1Mbps with VDD_ = 5.0V
    6.6mA per channel at 100Mbps with VDD_ = 5.0V

    Best in Class Propagation Delay and Skew

    12ns typical propagation delay
    2ns propagation delay skew (chip -to-chip)
    1ns pulse width distortion
    5ns minimum pulse width

    Package Options

    Wide-body SOIC16-WB(W) package

    Safety Regulatory Approvals

    VDE 0884-11 isolation certification
    UL According to UL1577
    IEC 62368-1, IEC 61010-1, GB 4943.1-2011 and GB 8898-2011 certifications

    AEC-Q100 Qualified for Automotive Application

    Grade 1 operating temperature range: -40°C to 125°C

  • Applications

    • Industrial Automation

    • Motor Control

    • Medical Systems

    • Isolated Power Supplies

    • Solar Inverters

    • Isolated ADC,DAC

    • Automotive Applications

  • Device Information

    Part numberPackagePackage size (NOM)

    CA-IS3740-Q1

    CA-IS3741-Q1

    CA-IS3742-Q1

    SOIC16-WB(W)10.30 mm × 7.50 mm
  • Simplified Functional Diagram

    ca_is3740hw_q1.jpg