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The Intersil ISL84467 device is a low ON-resistance, lowvoltage, bidirecTIonal, Quad SPDT (Dual DPDT) analogswitch designed to operate from a single +1.65V to +4.5Vsupply. Targeted applicaTIons include battery poweredequipment that benefit from low rON (0.39Ω) and fastswitching speeds (tON = 33ns, tOFF = 16ns). The digital logicinput is 1.8V logic-compaTIble when using a single +3V supply.With a supply voltage of 4.2V and logic high voltage of 2.85Vat both logic inputs, the part draws only 12μA max of ICCcurrent.Cell phones, for example, often face ASIC funcTIonalitylimitations. The number of analog input or GPIO pins may belimited and digital geometries are not well suited to analogswitch performance. This part may be used to “mux-in”additional functionality while reducing ASIC design risk. TheISL84467 is offered in small form factor package, alleviatingboard space limitations.The ISL84467 consists of four SPDT switches. It is configuredas a dual double-pole/double-throw (DPDT) device with twologic control inputs that control two SPDT switches each. Theconfiguration can be used as a dual differential 2-to-1multiplexer/demultiplexer.
