TMUX1119 5-V, Low-Leakage-Current, 2:1 Precision Switch

1 Features

• Wide supply range: 1.08V to 5.5V

• Low leakage current: 3pA

• Low on-resistance: 1.8Ω

• Low charge injection: –6pC

• -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

• ESD protection HBM: 2000V

2 Applications

• Ultrasound scanners

• Patient monitoring and diagnostics

• Blood glucose monitors

• Optical module

• Optical transport

• Remote radio units

• Data acquisition systems

• Semiconductor test equipment

• Factory automation and industrial controls

• Flow transmitters

• Programmable logic controllers (PLC)

• Analog input modules

• Battery test

3 Description

The TMUX1119 is a complementary metal-oxide

semiconductor (CMOS) single-pole double-throw (2:1)

switch. Wide operating supply of 1.08V to 5.5V allows

for use in a broad array of applications from medical

equipment to industrial systems. The device supports

bidirectional analog and digital signals on the source

(Sx) and drain (D) pins ranging from GND to VDD.

All logic inputs have 1.8V logic compatible thresholds,

allowing for 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 TMUX1119 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. A low supply current of

3nA and small package options enable use in portable

applications.

Package Information

PART NUMBER

PACKAGE(1)

PACKAGE SIZE(2)

TMUX1119

DCK (SC70, 6)

2mm × 2.1mm

DBV (SOT-23, 6)

2.9mm × 2.8mm

(1)

For more information, see Section 11

(2)

The package size (length × width) is a nominal value and

includes pins, where applicable.

ADC

TX/RX

MUX

MOSI

TX

MSP430FR599

OPA836

OPA835

TMUX1119

x1

TMUX1119

x2

SEL

SEL

Application Example

TMUX1119

SEL

S1

D

S2

Block Diagram

TMUX1119

SCDS401C – DECEMBER 2018 – REVISED FEBRUARY 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.