Precision analog switches for medical equipment to industrial systems

Texas Instruments TMUX1101/TMUX1102 Precision Analog Switches are a CMOS SPST switches. Wide operating supply of 1.08V to 5.5V provides for employment in a wide array of applications covering medical equipment to industrial systems. These devices support bidirectional analog and digital signals on the source (S) and drain (D) pins ranging from GND to VDD. The logic control input (SEL) has 1.8V logic compatible thresholds, assuring both TTL and CMOS logic compatibility when running within the valid supply voltage range. The switch of the TMUX1101 is turned on when SEL is Logic 1, while TMUX1102 is turned on when SEL is Logic 0. Fail-Safe Logic circuitry enables voltages on the SEL pin to be applied before the supply pin, protecting the device from potential damage.

These devices are a part of the precision switches and multiplexers family. They offer very low on and off leakage currents and low charge injection, enabling them to be employed in high precision measurement applications. Low supply current of 3nA and small package options allow use in portable applications.

Typical applications include sample-and-hold circuits, feedback gain switching, signal isolation, field transmitters, PLC, factory automation and control, ultrasound scanners, patient monitoring and diagnostics, ECG, DAQ, ATE test equipment, battery test equipment, instrumentation, smart meters, optical networking, and optical test equipment.