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ISO774x Quad-Channel Digital Isolators

Texas Instruments offers its ISO7740 high-speed, low-power, robust EMC, quad-channel digital isolators

Image of Texas Instruments' ISO774x Quad-Channel Digital IsolatorsTexas Instruments' ISO774x devices are high-performance, quad-channel digital isolators with 5000 VRMS (DW package) and 2500 VRMS (DBQ package) isolation ratings per UL 1577. This family of devices has reinforced insulation ratings according to VDE, CSA, TUV, and CQC.

The ISO774x devices provide high electromagnetic immunity and low emissions at low power consumption, while isolating CMOS or LVCMOS digital I/Os. Each isolation channel has a logic input and output buffer separated by silicon dioxide (SiO2) insulation barrier. This device comes with enable pins which can be used to put the respective outputs in high impedance for multi-master driving applications and to reduce power consumption. The ISO7740 device has all four channels in the same direction, the ISO7741 device has three forward and one reverse-direction channels, and the ISO7742 device has two forward and two reverse-direction channels. If the input power or signal is lost, default output is high for devices without suffix F and low for devices with suffix F.

Used in conjunction with isolated power supplies, this device helps prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. Through innovative chip design and layout techniques, electromagnetic compatibility of the ISO774x devices has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. The ISO774x devices are available in 16-pin SOIC and QSOP packages.

Features
  • Signaling rate: Up to 100 Mbps
  • Wide supply range: 2.25 V to 5.5 V
  • 2.25 V to 5.5 V level translation
  • Default output and options
  • Wide temperature range: -55°C to 125°C
  • Low power consumption, typical 1.5 mA per channel at 1 Mbps
  • Low propagation delay: 10.7 ns typical (5 V supplies)
  • High CMTI: ±100 kV/μs typical
  • Robust electromagnetic compatibility (EMC)
    • System-level ESD, EFT, and surge immunity
    • Low emissions
  • Isolation barrier life: >40 years
  • Wide-SOIC (DW-16) and QSOP (DBQ-16) package options
  • Safety-related certifications:
    • DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12
    • UL 1577 component recognition program
    • CSA component acceptance notice 5A, IEC 60950-1 and IEC 60601-1 end equipment standards CQC approval per GB4943.1-2011
    • TUV certification according to EN 60950-1 and EN 61010-1
    • Certifications for DW package complete; all other certifications are planned 

ISO774x Quad-Channel Digital Isolators

ImageManufacturer Part NumberDescriptionVoltage - IsolationAvailable QuantityView Details
DGTL ISO 5000VRMS 4CH GP 16SOICISO7741DWDGTL ISO 5000VRMS 4CH GP 16SOIC5000Vrms137 - ImmediateView Details
DGTL ISO 5000VRMS 4CH GP 16SOICISO7740FDWRDGTL ISO 5000VRMS 4CH GP 16SOIC5000Vrms0View Details
DGTL ISO 5000VRMS 4CH GP 16SOICISO7742FDWRDGTL ISO 5000VRMS 4CH GP 16SOIC5000Vrms1085 - ImmediateView Details
DGTL ISO 5000VRMS 4CH GP 16SOICISO7741FDWDGTL ISO 5000VRMS 4CH GP 16SOIC5000Vrms0View Details
DGTL ISO 5000VRMS 4CH 16SOICISO7742QDWQ1DGTL ISO 5000VRMS 4CH 16SOIC5000Vrms0View Details
DGTL ISO 5000VRMS 4CH 16SOICISO7741FQDWQ1DGTL ISO 5000VRMS 4CH 16SOIC5000Vrms24 - ImmediateView Details
DGTL ISO 5000VRMS 4CH 16SOICISO7740FQDWQ1DGTL ISO 5000VRMS 4CH 16SOIC5000Vrms0View Details
DGTL ISO 5000VRMS 4CH 16SOICISO7741QDWQ1DGTL ISO 5000VRMS 4CH 16SOIC5000Vrms49 - ImmediateView Details
DGTL ISO 5000VRMS 4CH 16SOICISO7742FQDWQ1DGTL ISO 5000VRMS 4CH 16SOIC5000Vrms0View Details
DGTL ISO 5000VRMS 4CH GP 16SOICISO7740DWRDGTL ISO 5000VRMS 4CH GP 16SOIC5000Vrms0View Details
DGTL ISO 5000VRMS 4CH GP 16SOICISO7742DWRDGTL ISO 5000VRMS 4CH GP 16SOIC5000Vrms0View Details
DGTL ISO 5000VRMS 4CH GP 16SOICISO7740DWDGTL ISO 5000VRMS 4CH GP 16SOIC5000Vrms0View Details
Published: 2017-01-19