What this quad SPST switch is and where it fits
The Maxim DG413CUE+ is a quad single-pole single-throw analog switch with a normally-open and normally-closed configuration per channel, packaged in a 16-TSSOP for surface-mount assembly. Each of the four independent switches routes analog or digital signals up to the supply rails with a maximum on-resistance of 45 Ohms and channel-to-channel matching within 3 Ohms. The part is designed for signal multiplexing, sample-and-hold circuits, and data-acquisition front-ends operating from a single 10 V to 30 V supply or dual ±4.5 V to ±20 V rails. The 0°C to 70°C temperature grade limits it to controlled indoor environments like bench instrumentation, telecom line cards, or office equipment — not for an engine bay or a rooftop radio.
Package and mounting
Turn-on time of 175 ns and turn-off of 145 ns set the throughput ceiling for a multiplexed ADC front-end.
Package and supply — what the board needs
The 16-TSSOP body (4.40 mm width) fits a tight PCB layout but demands careful routing of the analog and digital supply pins to keep switching noise off the signal path. Off-channel leakage is rated at 250 pA maximum, so high-impedance sources above 1 MOhm will see a voltage offset from the leakage current — worth checking if your source impedance is in that range. The part is ROHS3 compliant, no exemption issues for EU or California markets.
Lifecycle and sourcing posture
The part is active, so no last-time-buy scramble for a production BOM.