Product details

Integrated isolated power No Number of channels (#) 4 Forward/reverse channels 3/1 Isolation rating (Vrms) 3000 Data rate (Max) (Mbps) 100 Rating Space Surge voltage capability (Vpk) 5200 Current consumption per channel (DC) (Typ) (mA) 0.88 Current consumption per channel (1 Mbps) (Typ) (mA) 1.48 Operating temperature range (C) -55 to 125 Default output High, Low Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 2.25 Propagation delay (Typ) (ns) 10.7
Integrated isolated power No Number of channels (#) 4 Forward/reverse channels 3/1 Isolation rating (Vrms) 3000 Data rate (Max) (Mbps) 100 Rating Space Surge voltage capability (Vpk) 5200 Current consumption per channel (DC) (Typ) (mA) 0.88 Current consumption per channel (1 Mbps) (Typ) (mA) 1.48 Operating temperature range (C) -55 to 125 Default output High, Low Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 2.25 Propagation delay (Typ) (ns) 10.7
SSOP (DBQ) 16 29 mm² 4.9 x 6
  • Radiation Tolerant
    • Total Ionizing Dose (TID) Characterized (ELDRS-Free) = 30 krad(Si)
    • TID RLAT/RHA = 30 krad(Si)
    • Single-Event Latch-up (SEL) Immune to LET = 43 MeV⋅cm2/mg at 125°C
    • Single-Event Dielectric Rupture (SEDR) Immune (43 MeV⋅cm2/mg) at 500 VDC
  • Space Enhanced Plastic (Space EP)
    • Meets NASA’s ASTM E595 Outgassing Spec
    • Vendor Item Drawing (VID) V62/21610
    • Military Temp Range (-55°C to 125°C)
    • One Wafer Fabrication Site
    • One Assembly and Test Site
    • Gold Bond Wire, NiPdAu Lead Finish
    • Wafer Lot Traceability
    • Extended Product Life Cycle
    • Extended Product Change Notification
  • 600 VRMS continous working voltage
  • Section 6.7:
    • DIN VDE V 0884-11:2017-01
    • UL 1577 component recognition program
  • 100 Mbps data rate
  • Wide supply range: 2.25 V to 5.5 V
  • 2.25-V to 5.5-V level translation
  • Default output low
  • Low power consumption, 1.5 mA per channel typical at 1 Mbps
  • Low propagation delay: 10.7 ns typical (5-V Supplies)
  • Low channel-to-channel skew: 4 ns max (5-V Supplies)
  • ±100 kV/µs typical CMTI
  • System-level ESD, EFT, Surge, and Magnetic Immunity
  • Small QSOP (DBQ-16) package

  • Radiation Tolerant
    • Total Ionizing Dose (TID) Characterized (ELDRS-Free) = 30 krad(Si)
    • TID RLAT/RHA = 30 krad(Si)
    • Single-Event Latch-up (SEL) Immune to LET = 43 MeV⋅cm2/mg at 125°C
    • Single-Event Dielectric Rupture (SEDR) Immune (43 MeV⋅cm2/mg) at 500 VDC
  • Space Enhanced Plastic (Space EP)
    • Meets NASA’s ASTM E595 Outgassing Spec
    • Vendor Item Drawing (VID) V62/21610
    • Military Temp Range (-55°C to 125°C)
    • One Wafer Fabrication Site
    • One Assembly and Test Site
    • Gold Bond Wire, NiPdAu Lead Finish
    • Wafer Lot Traceability
    • Extended Product Life Cycle
    • Extended Product Change Notification
  • 600 VRMS continous working voltage
  • Section 6.7:
    • DIN VDE V 0884-11:2017-01
    • UL 1577 component recognition program
  • 100 Mbps data rate
  • Wide supply range: 2.25 V to 5.5 V
  • 2.25-V to 5.5-V level translation
  • Default output low
  • Low power consumption, 1.5 mA per channel typical at 1 Mbps
  • Low propagation delay: 10.7 ns typical (5-V Supplies)
  • Low channel-to-channel skew: 4 ns max (5-V Supplies)
  • ±100 kV/µs typical CMTI
  • System-level ESD, EFT, Surge, and Magnetic Immunity
  • Small QSOP (DBQ-16) package

The ISOS141-SEP radiation-tolerant device is a high-performance, quad-channel digital isolator in a small form factor 16-pin QSOP package. Each isolation channel has a logic input and output buffer separated by a double capacitive silicon dioxide (SiO2) insulation barrier. This device supports low Earth orbit (LEO) space applications with its high data rate of 100 Mbps, low propagation delay of 10.7 ns, and tight channel-to-channel skew of 4 ns. The ISOS141-SEP device has three forward and one reverse-direction channels and if the input power or signal is lost, the default output is low. The enable pins can be used to put the respective outputs in high impedance for multi-master driving applications and to reduce power consumption.

The ISOS141-SEP provides high electromagnetic immunity and low emissions with low power consumption, while isolating CMOS or LVCMOS digital I/Os. The device has a high common-mode transient immunity of 100 kV/µs and can ease system-level ESD, EFT, surge, and simplify emissions compliance through its innovative chip design.

The ISOS141-SEP radiation-tolerant device is a high-performance, quad-channel digital isolator in a small form factor 16-pin QSOP package. Each isolation channel has a logic input and output buffer separated by a double capacitive silicon dioxide (SiO2) insulation barrier. This device supports low Earth orbit (LEO) space applications with its high data rate of 100 Mbps, low propagation delay of 10.7 ns, and tight channel-to-channel skew of 4 ns. The ISOS141-SEP device has three forward and one reverse-direction channels and if the input power or signal is lost, the default output is low. The enable pins can be used to put the respective outputs in high impedance for multi-master driving applications and to reduce power consumption.

The ISOS141-SEP provides high electromagnetic immunity and low emissions with low power consumption, while isolating CMOS or LVCMOS digital I/Os. The device has a high common-mode transient immunity of 100 kV/µs and can ease system-level ESD, EFT, surge, and simplify emissions compliance through its innovative chip design.

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Technical documentation

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Type Title Date
* Data sheet ISOS141-SEP Radiation Tolerant High-Speed Quad-Channel Digital Isolator datasheet 05 Mar 2021
* Radiation & reliability report ISOS141-SEP Neutron Displacement Damage Characterization 18 Mar 2021
* Radiation & reliability report ISOS141-SEP Production Flow and Reliability Report 18 Mar 2021
* Radiation & reliability report ISOS141-SEP Quad-Channel Digital Isolator TID Report 17 Mar 2021
* Radiation & reliability report ISOS141-SEP Single-Event Latch-Up (SEL) Radiation Report 17 Mar 2021
Application note How to Isolate Signals with Digital Isolators in Emerging LEO Satellite Apps 18 Oct 2021
Technical article How space-grade digital isolation meets high radiation and immunity requirements in LEO satellites 14 Oct 2021
Application note Space-Grade, 30 krad, Isolated I2C Circuit 01 Jun 2021
Application note Space-Grade, 30-krad, Isolated CAN Serial Transceiver Circuit 01 Jun 2021
Application note Space-Grade, 30-krad, Isolated RS-422 Serial Transceiver Circuit 01 Jun 2021
Selection guide TI Space Products (Rev. H) 27 Jan 2021
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

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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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