Rad-Hard 16 Channel CMOS Analog Multiplexer with High-Z Analog Input Protection

TheHS-1840ARH, HS-1840AEH, HS-1840BRH are radiation hardened, monolithic 16 channel multiplexers constructed with the Intersil RadHard 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.

FEATUREs
• 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