1 Features
• Dual supply range: ±4.5V to ±18V
• Single supply range: 4.5V to 36V
• Low on-resistance: 2.1Ω
• Low charge injection: -10pC
• High current support: 330mA (maximum) (VSSOP)
• High current support: 440mA (maximum) (WSON)
• –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

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

3 Description
The TMUX6219 is a complementary metal-oxide
semiconductor (CMOS) switch in a single channel, 2:1
(SPDT) configuration. The device works with single
supply (4.5V to 36V), dual supplies (±4.5V to ±18V),
or asymmetric supplies (such as VDD = 5V, VSS =
−8V). The TMUX6219 supports bidirectional analog
and digital signals on the source (Sx) and drain (D)
pins ranging from VSS to VDD.
The TMUX6219 can be enabled or disabled by
controlling the EN pin. When disabled, both signal
path switches are off. When enabled, the SEL pin
can be used to turn on signal path 1 (S1 to D) or
signal path 2 (S2 to D). All logic control inputs support
logic levels from 1.8V 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 TMUX6219 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.