HS-0506RH

These radiation hardened monolithic CMOS multiplexers like HS-0506RH each include an array of sixteen analog switches, a digital decode circuit for channel selection, voltage reference for logic thresholds, and an ENABLE input for device selection when several multiplexers are present.

The Dielectric Isolation (DI) process used in fabrication of these devices eliminates the problem of latchup. Also, DI offers much lower substate leakage and parasitic capacitance than conventional junction isolated CMOS. The switching threshold for each digital input is established by an internal +5V reference, providing a guaranteed minimum 2.4V for logic "1" and maximum 0.8V for logic "0". This allows direct interface without pullup resistors to signals from most logic families: CMOS, TTL, DTL and some PMOS. For protection against transient overvoltage, the digital inputs include a series 200 resistor and diode clamp to each supply. The HS-0506RH is a sixteen channel single-ended multiplexer, and the HS-0507RH is an eight channel differential version. If input overvoltage protection is needed, the HS-0506RH or HS-0507RH multiplexers are recommended. For further information see Application Notes 520 and 521.