The ISL71831SEH is a radiation tolerant, 32-channel multiplexer that is fabricated using the Renesas proprietary P6-SOI process technology to provide excellent latch-up performance. It operates with a single supply range from 3V to 5. 5V and has a 5-bit address line plus an enable that can be driven with adjustable logic thresholds to conveniently select one of 32 available channels. An inactive channel is separated from the active channel by a high impedance, which inhibits any interaction between them. The ISL71831SEH’s low rDS(ON) allows for improved signal integrity and reduced power losses. The ISL71831SEH is also designed for cold sparing, making it excellent for redundancy in high reliability applications. It is designed to provide a high impedance to the analog source in a powered off condition, making it easy to add additional backup devices without incurring extra power dissipation. The ISL71831SEH also has analog overvoltage protection on the input that disables the switch during an overvoltage event to protect upstream and downstream devices. The ISL71831SEH is available in a 48 Ld CQFP and operates across the extended temperature range of -55°C to +125°C. There is also a 16-channel version available offered in a 28 Ld CDFP. Refer to the ISL71830SEH datasheet for more information.


  • DLA SMD 5962-15248
  • Fabricated using P6 SOI process technology
  • Rail-to-rail operation
  • No latch-up
  • Low rDS(ON): <120Ω (maximum)
  • Single supply operation: 3V to 5.5V
  • Adjustable logic threshold control
  • Cold sparing capable: -0.4V to 7V
  • Analog overvoltage range: -0.4V to 7V
  • Switch input off leakage: 120nA
  • Transition times (tAHL): 70ns
  • Internally grounded metal lid
  • Break-before-make switching
  • ESD protection ≥5kV (HBM)
  • Operating temperature range: -55°C to +125°C
  • Radiation tolerance
  • Low dose rate (0.01rad(Si)/s): 75krad(Si)
  • SEL/SEB LETTH (V+ = 6.3V): 60MeV•cm2/mg NOTE: All lots are assurance tested to 75krad (0.01rad(Si)/s) wafer-by-wafer.

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active CQFP Tray 1
Active CQFP Tray 1
Active 100
Active Die Waffle Pack 1


Title language Type Format File Size Date
Datasheets & Errata
ISL71831SEH Datasheet Datasheet PDF 1.15 MB
User Guides & Manuals
ISL71831SEHEV1Z User Guide Manual PDF 481 KB
Application Notes & White Papers
AN9867: End of Life Derating: A Necessity or Overkill Application Note PDF 338 KB
Rad Tolerant Multiplexers Move to Low Voltage Rails for Space Flight White Paper PDF 175 KB
Wafer by Wafer Low Dose Rate Acceptance White Paper White Paper PDF 533 KB
Intersil Space Products Brochure Brochure PDF 3.14 MB
Intersil Commercial Lab Services Brochure PDF 364 KB
Standard Microcircuit Drawing 5962-15248 (ISL71831SEH) Other 0 KB
TB517: Digital Pin Voltage Range for the Next Generation Muxes Other PDF 187 KB
ISL71831SEH SEE Test Report Report PDF 420 KB
ISL71831SEH Total Dose Test Report Report PDF 372 KB


Title language Type Format File Size Date
isl71830seh-31seh-pspice Model ZIP 10 KB
ISL71831SEHEV1Z Design Files Design File ZIP 558 KB

Boards & Kits

Part Number Title Type Company
ISL71830SEHEV1Z Radiation Tolerant 5V, 16- and 32-Channel, High ESD Protected Multiplexer Evaluation Board Evaluation Renesas
ISL71831SEHEV1Z Radiation Tolerant 5V, 16- and 32-Channel, High ESD Protected Multiplexer Evaluation Board Evaluation Renesas

News & Additional Resources

Type Date Sort ascending
Low Dose Rate Acceptance Testing Page Mar 25, 2020
Standard Data Package Page Mar 19, 2020
Rad Hard SMD Test Flow Page Mar 19, 2020
Rad Hard Test Reports Page Mar 19, 2020