The Intersil ISL54504 and ISL54505 devices are low ON-resistance, low voltage, bidirectional, single pole/single throw (SPST) analog switches designed to operate from a single +1.8V to +5.5V supply. Targeted applications include battery powered equipment that benefit from low rON resistance (2.5Ω), excellent rON flatness (0.6Ω), and fastswitching speeds (tON = 25ns, tOFF = 15ns). The digital logicinput is 1.8V CMOS compatible when using a single +3Vsupply.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 family of parts may be used toswitch in additional functionality while reducing ASIC designrisk. The ISL54054, ISL54055 are offered in a 6 Ld1.2mmx1.0mmx0.4mm pitch μTDFN package, alleviatingboard space limitations.The ISL54504 has one normally open (NO) switch and ISL54505 has one normally closed (NC) switch.
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