Active production, 4-channel SPST with ±4.5V to 20V dual supply
The MAX314CSE+T is an active-production, 4-circuit SPST analog switch from Analog Devices, configurable as normally-open or normally-closed per channel. It operates from a single 4.5V to 30V rail or dual ±4.5V to 20V supplies, making it suitable for bipolar signal chains and single-supply data-acquisition systems. On-resistance is 10 Ohm max, with channel-to-channel matching of 300 mOhm — the matching figure matters more than the absolute Ron when switching gain-setting resistors or precision dividers, because the offset error between channels stays below 0.3 Ohm.
Dynamic performance: 225 ns switching, -85 dB crosstalk
Maximum turn-on time is 225 ns, turn-off 185 ns — fast enough for audio multiplexing, sensor scanning at 100 kHz rates, and relay-replacement in ATE pin electronics. Charge injection is 20 pC typical, which translates to a ~1.3 mV glitch into a 15 pF load; keep the downstream ADC input settled within one conversion cycle. Crosstalk is -85 dB at 1 MHz, and off-channel leakage is 500 pA max. In a 16-channel system, the summed leakage from 15 off channels is under 7.5 nA — negligible for a 10 kΩ source impedance but worth derating for high-impedance front-ends above 1 MΩ. Channel capacitance is 15 pF on both source and drain sides. This sets the bandwidth ceiling: into a 10 kΩ load, the -3 dB pole is roughly 1 MHz, matching the crosstalk test frequency. For video or high-speed ADC drivers, buffer the output.
16-SOIC surface-mount package, commercial temperature grade
The 1.27 mm pin pitch is layout-friendly — two-layer boards route the analog and supply traces without via congestion under the package. This covers lab instrumentation, office-environment data acquisition, and telecom line cards with forced air. Not specified for -40°C operation — if the BOM requires industrial temperature, look at the MAX314C/D or MAX314EPE variants from the same family.
For BOM planning, this part is a safe anchor through 2025 and beyond, assuming normal product lifecycles.