Texas Instruments' TMUX1119 is a complementary metal-oxide-semiconductor (CMOS) single-pole-double-throw (2:1) switch. The wide operating supply of 1.08 V to 5.5 V allows the device to be used in a broad array of applications from medical equipment to industrial systems. The device supports bidirectional analog and digital signals on the source (Sx) and drain (D) pins ranging from GND to V_DD. The logic inputs have 1.8 V logic compatible thresholds ensuring TTL and CMOS logic compatibility when the device is operating in the valid supply voltage range. Fail-safe logic circuitry allows voltages on the control pins to be applied before the supply pin to protect the device from potential damage.

The TMUX1119 device has ultra-low on and off leakage currents and low charge injection, allowing it to be used in high-precision measurement applications. Low supply current of 3 nA and small package options enable the device to be used in portable applications.