1 Features
• Single supply range: 4.5 V to 36 V
• Dual supply range: ±4.5 V to ±18 V
• Low on-resistance: 4 Ω
• Low charge injection: 3 pC
• High current support: 400 mA (maximum) (WQFN)
• High current support: 300 mA (maximum)
(TSSOP)
• –40°C to +125°C operating temperature
• 1.8 V logic compatible inputs
• Integrated pull-down resistor on logic pins
• Fail-safe logic
• Rail-to-rail operation
• Bidirectional signal path
• Break-before-make switching

2 Applications
• Factory automation and control
• Programmable logic controllers (PLC)
• Analog input modules
• Semiconductor test equipment
• Battery test equipment
• Ultrasound scanners
• Patient monitoring and diagnostics
• Optical networking
• Optical test equipment
• Wired networking
• Data acquisition systems (DAQ)

3 Description
The TMUX6208 is a precision 8:1, single channel
multiplexer while the TMUX6209 is a 4:1, 2 channel
multiplexer featuring low on resistance and charge
injection. The devices work with a single supply (4.5V
to 36V), dual supply (±4.5V to ±18V), or asymmetric
supply (such as VDD = 12V, VSS = –5V). The
TMUX620x supports bidirectional analog and digital
signals onthe source (Sx) and drain (D) pins ranging
from VSS to VDD.
All logic control inputs support logic high 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 TMUX620x are 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.