1 Features
• Wide supply range: 1.08V to 5.5V
• Low leakage current: 3pA
• Low charge injection: –1.5pC
• Low on-resistance: 1.8Ω
• –40°C to +125°C operating temperature
• 1.8V logic compatible
• Fail-safe logic
• Rail to rail operation
• Bidirectional signal path
• Break-before-make switching
• ESD protection HBM: 2000V

2 Applications
• Sample-and-hold circuits
• Feedback gain switching
• Signal isolation
• Field transmitters
• Programmable logic controllers (PLC)
• Factory automation and control
• Ultrasound scanners
• Patient monitoring and diagnostics
• Electrocardiogram (ECG)
• Data acquisition systems (DAQ)
• Semiconductor test equipment
• Battery test equipment
• Instrumentation: lab, analytical, portable
• Ultrasonic smart meters: water and gas
• Optical networking
• Optical test equipment

3 Description
The TMUX1101 and TMUX1102 are precision
complementary metal-oxide semiconductor (CMOS)
single-pole, single-throw (SPST) switches. A wide
operating supply of 1.08V to 5.5V makes these
devices an excellent choice for a broad array of
applications from medical equipment to industrial
systems. The 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, ensuring both TTL and CMOS
logic compatibility when operating 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 allows voltages on the SEL pin to be applied
before the supply pin, protecting the device from
potential damage.
The TMUX110x devices are part of the precision
switches and multiplexers family. These devices have
very low on and off leakage currents and low charge
injection, allowing them to be used in high precision
measurement applications. A low supply current of
3nA and small package options enable use in portable
applications.