The DG419LDY+T is an Analogue Switch IC manufactured by Analog Devices. It has 35Ohm Single Pole Single Throw (SPST) and Single Pole Double Throw (SPDT) switches, and is +3V Logic-Compatible. It is designed to operate as a low voltage analog switch, and to provide a convenient means for switching on and off circuits. This device has a variety of features which make it suitable for a wide range of applications, such as signal routing, power management, and digital-to-analog conversion. It is capable of operating in single, dual, and quad configurations. Additionally, the DG419LDY+T also supports low power consumption and can handle up to 1mA current. It is an excellent choice for high-performance, low-power analog switching applications.