1 Features
• Dual supply range: ±4.5 V to ±18 V
• Single supply range: 4.5 V to 36V
• Low on-resistance: 1.2 Ω
• Low charge injection: −10 pC
• –40°C to +125°C operating temperature
• Integrated Pull-Down resistor on logic pins
• 1.8 V logic compatible
• Fail-safe logic
• Rail-to-rail operation
• Bidirectional signal path
• Break-before-make switching

2 Applications
• Optical networking
• Optical test equipment
• Wired networking
• Factory automation and industrial controls
• Programmable logic controllers (PLC)
• Semiconductor test
• Ultrasound scanners
• Patient monitoring and diagnostics
• Remote radio units
• Data acquisition systems

3 Description
The TMUX620x is a complementary metal-oxide
semiconductor (CMOS) in a single 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 TMUX620x supports bidirectional analog
and digital signals on the source (S) and drain (D) pin
ranging from VSS to VDD.
The TMUX620x can be enabled or disabled by
controlling the SEL pin. When disabled, both signal
path switches are off. All logic control inputs support
logic levels from 1.8 V to VDD, which is compatible for
both TTL and CMOS logic 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.