Quad SPST-NO analog switch for precision signal routing
The Maxim MAX392EUE+ is a quad SPST-NO analog switch in a 16-TSSOP package. Each of the four independent switches handles signals with a maximum on-resistance of 35 Ohm, and the channel-to-channel matching holds within 300 mOhm — useful when you are routing multiple channels through the same board and want consistent attenuation across paths. It runs on a single supply from 3 V to 15 V or a dual supply of ±3 V to ±8 V, so it fits both single-rail microcontroller boards and split-supply analog front-ends. The -85 dB crosstalk at 1 MHz keeps channel bleed low enough for audio-frequency multiplexing and moderate-speed data acquisition. Switching is fast — 130 ns turn-on, 75 ns turn-off — so you can scan multiple sensor inputs or reconfigure gain networks without missing a sample window. The 2 pC charge injection is low enough that downstream sample-and-hold circuits see minimal glitch.
Industrial temperature and active lifecycle
Rated for -40°C to 85°C, this switch is comfortable in motor-drive cabinets, outdoor telecom enclosures, and factory-floor instrumentation. The active lifecycle status means no last-time-buy clock ticking — you can qualify it into a new BOM without worrying about an imminent EOL notice. It is ROHS3 compliant, so it passes the usual European and North American environmental paperwork without extra exemptions.
Package and handling in the field
The 16-TSSOP body is 4.40 mm wide — small enough to fit on tight mixed-signal boards but still hand-solderable with a fine-tip iron if you are doing a field repair. Surface-mount only; no socket option, so plan for a rework station or a steady hand if swapping in the field.