CD4051BE Texas Instruments 8:1 Analog Multiplexer/Demultiplexer IC (DIP-16)

The CD4051 is the standard part for switching any one of eight analog inputs through to a single output under digital control, which comes up constantly in projects that need to read more sensors than a microcontroller has analog pins for, or route one signal path to several possible destinations. This BE-suffix version is a genuine Texas Instruments part in the breadboard-friendly DIP-16 package, distinct from the generic unbranded CD4051 already in the catalogue for builders who specifically want traceable TI silicon. Operating from 3V to 20V with a low 240-ohm on-resistance, it switches analog signals cleanly without introducing much loss, which matters when the signal being routed is already small.