1 Features
• Dual supply range: ±4.5 V to ±18 V
• Single supply range: 4.5 V to 36 V
• Low on-resistance: 2.1 Ω
• –40°C to +125°C operating temperature
• 1.8 V logic compatible
• Integrated pull-down resistor on logic pins
• Fail-safe logic
• Rail-to-rail operation
• Bidirectional operation

2 Applications
• Wired networking
• Remote radio units
• Patient monitoring and diagnostics
• Ultrasound scanners
• Optical test equipment
• Optical networking
• Factory automation and industrial controls
• Programmable logic controllers (PLC)
• Analog input modules
• AC charging (pile) station
• Semiconductor test
• Data acquisition systems
• Gas meters
• Flow transmitters

3 Description
The TMUX622x are complementary metal-oxide
semiconductor (CMOS) switch in a dual channel, 1:1
(SPST) configuration. The device works with a single
supply (4.5 V to 36 V), dual supplies (±4.5 V to ±18
V), or asymmetric supplies (such as VDD = 12 V, VSS
= –5 V). The TMUX622x supports bidirectional analog
and digital signals on the source (Sx) and drain (D)
pins ranging from VSS to VDD.
The TMUX622x can be enabled or disabled by
controlling the SEL pins turning on signal path 1
(S1 to D1) or signal path 2 (S2 to D2). All logic
control inputs support logic levels from 1.8 V to
VDD, ensuring 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 TMUX622x is part of the precision switches and
multiplexers family of devices. These devices have
very low on and off leakage currents, 50 pA, allowing
them to be used in high precision measurement
applications.