1 Features
• Wide supply range: 1.08V to 5.5V
• Low leakage current: 3pA
• Low on-resistance: 1.8Ω
• Low charge injection: –6pC
• -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
• Ultrasound scanners
• Patient monitoring and diagnostics
• Blood glucose monitors
• Optical module
• Optical transport
• Remote radio units
• Data acquisition systems
• Semiconductor test equipment
• Factory automation and industrial controls
• Flow transmitters
• Programmable logic controllers (PLC)
• Analog input modules
• Battery test

3 Description
The TMUX1119 is a complementary metal-oxide
semiconductor (CMOS) single-pole double-throw (2:1)
switch. Wide operating supply of 1.08V to 5.5V allows
for use 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 VDD.
All logic inputs have 1.8V logic compatible thresholds,
allowing for both TTL and CMOS logic compatibility
when operating in the valid supply voltage range. Fail-
Safe Logic circuitry allows voltages on the control pins
to be applied before the supply pin, protecting the
device from potential damage.
The TMUX1119 is part of the precision switches and
multiplexers family of devices. 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.