The TMUXS1306A is a general purpose complementary metal-oxide semiconductor (CMOS) multiplexer (MUX). The TMUXS1306A is an 16:1, 1-channel (single-ended) mux. The devices support bidirectional analog and digital signals on the source (Sx) and drain (Dx) pins ranging from GND to VDD.

The TMUXS1306A devices have an internal injection current control feature, which eliminates the need for external diode and resistor networks typically used to protect the switch and keep the input signals within the supply voltage. The internal injection current control circuitry allows signals on disabled or enabled signal paths to exceed the supply voltage. Disabled channels with voltages above VDD are prevented from affecting the signal of the enabled signal path.

The TMUXS1306A devices do not have an internal diode path to the supply pin, which eliminates the risk of damaging components connected to the supply pin or providing unintended power to the supply rail. Due to these features RC networks on the input side can be reduced. This allows for a much smaller current limiting resistor, which can have a significant impact on the ramp rates.