The ISL71840SEH is a radiation hardened, 16-channel high ESD protected multiplexer fabricated using the Renesas proprietary P6SOI (Silicon On Insulator) process technology to mitigate single-event effects and total ionizing dose. It operates with a dual supply voltage ranging from ±10. 8V to ±16. 5V. It has a 4-bit address plus an enable pin that can be driven with adjustable logic thresholds to conveniently select one of 16 available channels. An inactive channel is separated from an active channel by a high impedance, which inhibits any interaction between them. The ISL71840SEH’s low rON allows for improved signal integrity and reduced power losses. The ISL71840SEH is also designed for cold sparing, making it excellent for high reliability applications that have redundancy requirements. 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 loading signal sources. The ISL71840SEH also incorporates input analog overvoltage protection, which disables the switch to protect downstream devices. The ISL71840SEH is available in a 28 Ld CDFP or die form and operates across the extended temperature range of -55°C to +125°C. A 32-channel version in a 48 Ld CQFP is also available. Refer to the ISL71841SEH datasheet for more information.


  • DLA SMD# 5962-15219
  • Fabricated using P6SOI process technology
  • Provides latch-up immunity
  • ESD protection 8kV (HBM)
  • Rail-to-rail operation
  • Overvoltage protection
  • Low rON: <500Ω (typical)
  • Flexible split rail operation
  • Positive supply above GND (V+): +10.8V to +16.5V
  • Negative supply below GND (V-): -10.8V to -16.5V
  • Adjustable logic threshold control with VREF pin
  • Cold sparing capable (from ground): ±25V
  • Analog overvoltage range (from ground): ±35V
  • Off switch leakage: 100nA (maximum)
  • Transition times (tR, tF): 500ns (typical)
  • Break-before-make switching
  • Grounded metal lid (internally connected)
  • Operating temperature range: -55°C to +125°C
  • Radiation tolerance
  • High dose rate (50-300rad(Si)/s): 100krad(Si)
  • Low dose rate (0.01rad(Si)/s): 100krad(Si) (see Note 1)
  • SEB LETTH: 86.4MeV•cm2/mg
    1. Product capability established by initial characterization. All subsequent lots are assurance tested to 50krad (0.01rad(Si)/s) wafer-by-wafer.


Title language Type Format File Size Date
star ISL71840SEH Datasheet Datasheet PDF 1.17 MB
AN9867: End of Life Derating: A Necessity or Overkill Application Note PDF 338 KB
Intersil Space Products Brochure Brochure PDF 3.16 MB
Intersil Commercial Lab Services Brochure PDF 364 KB
R34ZZ0001: ISL7184xSEH Output Capacitance Considerations Other PDF 2.67 MB
Standard Microcircuit Drawing 5962-15219 (ISL71840SEH, ISL73840SEH) Other 0 KB
TB517: Digital Pin Voltage Range for the Next Generation Muxes Other PDF 187 KB
ISL7x840SEH Total Dose Test Report Report PDF 517 KB
ISL71840SEH, ISL73840SEH SEE Test Report Report PDF 532 KB
Achieving Satellite Mission Assurance with Rad Hard Multiplexers White Paper PDF 438 KB
Wafer by Wafer Low Dose Rate Acceptance White Paper White Paper PDF 533 KB


Title language Type Format File Size Date
isl71840seh-isl71841seh_pspice_model Model - Other ZIP 9 KB

memoryBoards & Kits

Part Number Title Type Company
ISL71840SEHEV1Z Radiation Hardened 16 and 32-Channel Analog Multiplexer Evaluation Board Evaluation Renesas
ISL71841SEHEV1Z Radiation Hardened 16 and 32-Channel Analog Multiplexer Evaluation Board Evaluation Renesas

printNews & Additional Resources

Type Date Sort ascending
Low Dose Rate Acceptance Testing Page Mar 26, 2020
Standard Data Package Page Mar 20, 2020
Rad Hard SMD Test Flow Page Mar 20, 2020
Rad Hard Test Reports Page Mar 20, 2020