Single SPST switch in a SOT-23-5 — what it does and where it fits
The MAX4501CUK+T is a single-pole, single-throw normally-open analog switch from Analog Devices, packaged in a SOT-23-5. It routes one signal path with a 250 ohm max on-resistance, controlled by a digital logic input. The 2V to 12V single-supply range lets it sit on a 3.3V or 5V rail without extra translation. Typical uses include audio muting, signal gating, and sample-and-hold front-ends in instrumentation or consumer gear where board space is tight.
On-resistance and switching speed — what they mean for signal integrity
The 250 ohm max on-resistance and 3 pF off-capacitance affect signal integrity at high frequencies.
Charge injection and leakage — precision analog considerations
The 1 pC charge injection and 1 nA off-leakage suit high-impedance sensor paths.
The SOT-23-5 footprint is standard; verify the land pattern matches the case code before layout.