TMUX720x 44-V, Latch-Up Immune, 8:1, 1-Channel and 4:1, 2-Channel Precision

Multiplexers with 1.8-V Logic

1 Features

• Latch-Up Immune

• Dual Supply Range: ±4.5 V to ±22 V

• Single Supply Range: 4.5 V to 44 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

• 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 TMUX7208 is a precision 8:1, single channel

multiplexer while the TMUX7209 is a 4:1, 2 channel

multiplexer featuring low on resistance and charge

injection. The devices work with a single supply (4.5

V to 44 V), dual supplies (±4.5 V to ±22 V), or

V). The TMUX720x support bidirectional analog and

digital signals onthe source (Sx) and drain (D) pins

The TMUX720x are part of the precision switches

and multiplexers family of devices and have very

low on and off leakage currents allowing them to

be used in high precision measurement applications.

The TMUX72xx family provides latch-up immunity,

preventing undesirable high current events between

parasitic structures within the device typically caused

by overvoltage events. A latch-up condition typically

continues until the power supply rails are turned off

and can lead to device failure. The latch-up immunity

feature allows the TMUX72xx family of switches and

multiplexers to be used in harsh environments.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TMUX7208

TMUX7209

TSSOP (16) (PW)

5.00 mm × 4.40 mm

WQFN (16) (RUM)

4.00 mm × 4.00 mm

(1)

See the package option addendum at the end of the data

sheet for all available packages.

SW

SW

S1

S2

D

TMUX7208

SW

S8

Logic Decoder

A0

A1

A2

EN

SW

SW

S1A

DA

TMUX7209

Logic Decoder

A0

A1

S4A

SW

SW

S1B

DB

S4B

EN

TMUX7208 and TMUX7209 Block Diagram

TMUX7208, TMUX7209

SCDS418B – JULY 2020 – REVISED APRIL 2021

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.