12V, 2:1 (SPDT), analog switch, 2Ω Ron, no overshoot when switching inputs

The TMUX4157N is a general

purpose 2:1, single-pole double-throw (SPDT), switch that supports a negative supply

rail only. The supply voltage can range from -4 V to -12 V and the device supports

bidirectional analog and digital signals on the source (Sx) and drain (D) pins

ranging from GND to VSS. The state of the select pin (SEL) controls which

of the two sources pins are connected to the drain pin.

While TMUX4157N supports

negative voltages on the supply pin and signal path, the logic input pin is

controlled with a positive voltage to allow interfacing with typical control logic

circuitry such as a GPIO signal. The logic input pin has 1.8 V logic compatible

thresholds and can operate as high as 5.5 for added system flexibility. Fail-Safe

Logic circuitry allows voltages on the control pins to be applied before the supply

pin, protecting the device from potential damage.

Fast transition times and high continuous current through the switch make the

TMUX4157N well suited for applications where the system needs to quickly switch

between two different voltage inputs.

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