DATASHEET HS-0548RH, HS-0549RH Radiation Hardened.
HS-0549RH - Radiation Hardened Single 8/Differential 4 Channel CMOS Analog Multiplexers
HS1B-0549RH-Q - Radiation Hardened Single 8/Differential 4 Channel CMOS Analog Multiplexers with Active Overvoltage Protection