Quad SPST switch function and BOM fit
The DG442CEE is a quad single-pole single-throw (SPST) analog switch — four independent switches in one package, each controlled by a separate logic input. It routes analog signals up to the supply rails or switches digital logic levels, with low on-resistance and fast switching typical of the DG44x family. The bulk package means parts ship in tubes or trays, not tape-and-reel; factor that into pick-and-place setup if you are running high-volume reflow.
Sourcing and availability for volume orders
For a sole-sourced BOM line, consider qualifying a pin-compatible second source from the same switch family to hedge allocation risk.