Quad SPST switch in a 16-WLP — what you're working with
The MAX4747EWE+T from Analog Devices is a quad single-pole single-throw (SPST) analog switch housed in a 16-bump wafer-level package (WLP). Four independent SPST channels give you signal routing or multiplexing in a compact footprint — the WLP saves board area but demands careful handling during assembly because the bumps are the package body.
Sourcing and lifecycle — active, no LTB clock ticking
ROHS3 compliant, which covers the latest EU substance restrictions. For a BOM freeze or a new-design qualification, this part does not carry the LTB risk that obsolete switches do.
Package and handling — WLP assembly notes
The 16-WLP package means the solder bumps are the only interface to the board. No leads to inspect visually — X-ray or acoustic microscopy is the go-to for joint verification. Strip packaging (not tape-and-reel) is the listed delivery form, so confirm your pick-and-place feeder setup can handle strip-fed parts or plan a reel-to-strip conversion step.