What this switch is and where it fits
The Maxim Integrated MAX4663CAE+ is a four-channel SPST analog switch with both normally-open and normally-closed poles in a single 16-SSOP package. Each channel presents a maximum on-resistance of 2.5 Ohm with channel-to-channel matching held to 100 mOhm. The switch handles single-supply rails from 4.5 V up to 36 V or dual supplies from ±4.5 V to ±20 V.
Package and mounting
Turn-on time is 275 ns max, turn-off 175 ns max. Crosstalk is -59 dB at 1 MHz.
Package and temperature range
Housed in a 16-SSOP (0.209" body width, 5.30 mm), the part is surface-mount and suits compact mixed-signal PCBs. The operating temperature range is 0 °C to 70 °C — commercial grade, so it belongs in lab instrumentation, bench test gear, or indoor industrial control cabinets, not under-hood or outdoor environments without climate control.
Lifecycle and sourcing reality
The MAX4663CAE+ carries an Active product status with RoHS3 compliance. For a BOM line that needs a low-Ron analog switch with dual-supply flexibility, this part can be specified into production without immediate obsolescence risk.