The NL5S4599 and NL5ST4599 are advanced high speed CMOS single pole − double throw (SPDT) analog switches fabricated with silicon gate CMOS technology. These achieve high speed propagation delays and low ON resistances while maintaining low power dissipation. These switches control analog and digital voltages that may vary across the full power-supply range (from VCC to GND). These devices have been designed so the ON resistance (RON) is much lower and more linear over the input voltage range than RON of typical CMOS analog switches.