TMUX620x 36 V, Low-Ron, 8:1 1-Channel and 4:1, 2-Channel Precision Multiplexers

with 1.8 V Logic

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.

Table 3-1. Device Information

PART NUMBER

CONFIGURATION

PACKAGE (1)

TMUX6208

1 Channel 8:1

Multiplexer

TSSOP (16) (PW)

WQFN (16) (RUM)

TMUX6209

2 Channel 4:1

Multiplexer

(1)

For all available packages, see the package option

addendum at the end of the data sheet.

SW

SW

S1

S2

D

VDD

VSS

TMUX6208

SW

S8

Logic Decoder

A0

A1

A2

EN

SW

SW

S1A

DA

TMUX6209

Logic Decoder

A0

A1

S4A

SW

SW

S1B

DB

S4B

VDD

VSS

EN

TMUX6208 and TMUX6209 Block Diagram

TMUX6208, TMUX6209

SCDS419E – NOVEMBER 2020 – REVISED JULY 2024

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.