The HS-1840ARH, HS-1840AEH, HS-1840BRH and HS-1840BEH are radiation hardened, monolithic 16 channel multiplexers constructed with the Intersil Rad-Hard Silicon Gate, bonded wafer, Dielectric Isolation process. They are designed to provide a high input impedance to the analog source if device power fails (open), or the analog signal voltage inadvertently exceeds the supply by up to ±35V, regardless of whether the device is powered on or off. Excellent for use in redundant applications, since the secondary device can be operated in a standby unpowered mode affording no additional power drain. More significantly, a very high impedance exists between the active and inactive devices preventing any interaction. One of sixteen channel selections is controlled by a 4-bit binary address plus an Enable-Inhibit input which conveniently controls the ON/OFF operation of several multiplexers in a system. All inputs have electrostatic discharge protection. The HS-1840ARH, HS-1840AEH, HS-1840BRH and HS-1840BEH are processed and screened in full compliance with MIL-PRF-38535 and QML standards. The devices are available in a 28 Ld SBDIP and a 28 Ld Ceramic Flatpack. Specifications for Rad Hard QML devices are controlled by the Defense Logistics Agency Land and Maritime (DLA). The SMD numbers listed here must be used when ordering. Detailed Electrical Specifications for these devices are contained in SMD 5962-95630.


  • Electrically screened to SMD # 5962-95630
  • QML qualified per MIL-PRF-38535 requirements
  • Pin-to-pin for Intersil's HS-1840RH and HS-1840/883S
  • Improved radiation performance
  • Gamma dose (γ) 3x105RAD(Si)
  • Improved rDS(ON) Linearity
  • Improved access time 1.5µs (Max) over temp and post rad
  • High analog input impedance 500MΩ during power loss (open)
  • ±35V input overvoltage protection (power on or off)
  • Dielectrically isolated device islands
  • Excellent in Hi-Rel redundant systems
  • Break-before-make switching
  • No latch-up


Title language Type Format File Size Date
star HS-1840ARH, HS-1840AEH, HS-1840BRH, HS-1840BEH Datasheet Datasheet PDF 370 KB
AN9867: End of Life Derating: A Necessity or Overkill Application Note PDF 338 KB
AN9654: Use of Life Tested Parts Application Note PDF 224 KB
Intersil Space Products Brochure Brochure PDF 3.16 MB
Intersil Commercial Lab Services Brochure PDF 364 KB
Standard Microcircuit Drawing 5962-95630 (HS-1840AEH, HS-1840ARH, HS-1840ARH-T, HS-1840BEH, HS-1840BRH) Other 0 KB
TB402: Avoiding Excessive Supply Current in the HS-1840ARH During Start-Up Other PDF 177 KB
PIN19011 - Price Increase for the Listed Renesas Electronics America (REA) Radiation Hardened Space Products Price Increase Notice PDF 360 KB
PCN15036 - Part Marking Change for the Listed Intersil HSx-1840xxH / DLA SMD 5962-95630 Products Product Change Notice PDF 278 KB
HS1840ARH Total Dose Test Report Report PDF 434 KB
Wafer by Wafer Low Dose Rate Acceptance White Paper White Paper PDF 533 KB


Title language Type Format File Size Date
hs9-1840arh Model - Other IBS 5 KB
hs1840_release Model - Other ZIP 59 KB

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