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

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.

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