+1.8V to +5.5V, 5Ω, Single SPST Analog Switches The Intersil ISL54501 and ISL54502 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 (5Ω), excellent rON flatness, and fast switching
speeds (tON = 22ns, tOFF = 15ns). The digital logic input is
1.8V CMOS compatible when using a single +3V supply.
Cell phones, for example, often face ASIC functionality
limitations. The number of analog input or GPIO pins may be
limited and digital geometries are not well suited to analog
switch performance. This family of parts may be used to
switch in additional functionality while reducing ASIC design
risk. The ISL54501, ISL54502 are offered in a 6 Ld 1.2mmx1.0mmx0.4mm pitch μTDFN package, alleviating board space limitations.The ISL54501 has one normally open (NO) switch and ISL54502 has one normally closed (NC) switch.