15 Ohm SPDT switch — when signal integrity matters
The Texas Instruments SN74LVC1G3157DRY2 is a single-pole double-throw (SPDT) analog switch that routes one common pin to either of two independent I/O paths. Its 15 Ohm max on-state resistance keeps insertion loss low in RF and baseband signal chains, while the 340 MHz -3dB bandwidth means it passes high-speed digital or analog signals without rolling off the edge rate.
Bandwidth and crosstalk — the analog path budget
With 340 MHz of -3dB bandwidth and -54 dB crosstalk at 10 MHz, this switch handles RF multiplexing, high-speed ADC input selection, and audio routing without injecting channel bleed. The 7 pC charge injection is low enough that sampling glitches stay below the noise floor of a 12-bit ADC at moderate throughput. Channel-to-channel on-resistance matching is held to 100 mOhm, so gain errors in differential or multiplexed paths are minimal.
Package and footprint — 6-UFDFN land pattern
The 6-UFDFN package (1.45 x 1.0 mm body, 0.50 mm pitch) is a tiny SON footprint suited for space-constrained designs like handheld radios, sensor modules, or portable instrumentation. The supplier device package is 6-SON (1.45x1). Surface-mount assembly requires a standard lead-free reflow profile; no thermal pad or exposed paddle to manage.
Supply and temperature — industrial-grade flexibility
Maximum leakage current (IS(off)) is 1 µA, so the switch doesn't drain the rail in battery-powered designs.