The NLAS3158 is an advanced CMOS analog switch fabricated with silicon gate CMOS technology. It achieves very low propagation delay and RDSON resistances while maintaining CMOS low power dissipation. Analog and digital voltages that may vary across the full power-supply range (from VCC to GND). This device is a drop in replacement for the PI5A3158. The select pin has overvoltage protection that allows voltages above VCC, up to 7.0 V to be present on the pin without damage or di srupt i on of ope ra t i on of the pa rt , re ga rdl e ss of the operating voltage.