ADG5249F

Data Sheet User Defined Fault Protection and Detection, 0.8 pC QINJ, 8:1/Dual 4:1 Multiplexers ADG5248F/ADG5249F FEATURES User defined secondary supplies set overvoltage level Overvoltage protection up to −55 V and +55 V Power-off protection up to −55 V and +55 V Overvoltage detection on source pins Minimum secondary supply level: 4.5 V single-supply Interrupt flags indicate fault status Low charge injection (QINJ): 0.8 pC Low drain/source on capacitance ADG5248F: 19 pF ADG5249F: 14 pF Latch-up immune under any circumstance Known state without digital inputs present VSS to VDD analog signal range ±5 V to ±22 V dual supply operation 8 V to 44 V single-supply operation Fully specified at ±15 V, ±20 V, +12 V, and +36 V APPLICATIONS Analog input/output modules Process control/distributed control systems Data acquisition Instrumentation Avionics Automatic test equipment Communication systems Relay replacement GENERAL DESCRIPTION The ADG5248F and ADG5249F are 8:1 and dual 4:1 analog multiplexers. The ADG5248F switches one of eight inputs to a common output, and the ADG5249F switches one of four differential inputs to a common differential output. Each channel conducts equally well in both directions when on, and each channel has an input signal range that extends to the supplies. The primary supply voltages define the on-resistance profile, whereas the secondary supply voltages define the voltage level at which the overvoltage protection engages. When no power supplies are pres...