TMUX110x 5V, Low-Leakage-Current, 1:1 (SPST) Precision Switch

1 Features

• Wide supply range: 1.08V to 5.5V

• Low leakage current: 3pA

• Low charge injection: –1.5pC

• Low on-resistance: 1.8Ω

• –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

• Sample-and-hold circuits

• Feedback gain switching

• Signal isolation

• Field transmitters

• Programmable logic controllers (PLC)

• Factory automation and control

• Ultrasound scanners

• Patient monitoring and diagnostics

• Electrocardiogram (ECG)

• Data acquisition systems (DAQ)

• Semiconductor test equipment

• Battery test equipment

• Instrumentation: lab, analytical, portable

• Ultrasonic smart meters: water and gas

• Optical networking

• Optical test equipment

3 Description

The TMUX1101 and TMUX1102 are precision

complementary metal-oxide semiconductor (CMOS)

single-pole, single-throw (SPST) switches. A wide

operating supply of 1.08V to 5.5V makes these

devices an excellent choice for a broad array of

applications from medical equipment to industrial

systems. The devices support bidirectional analog

and digital signals on the source (S) and drain (D)

pins ranging from GND to VDD.

The logic control input (SEL) has 1.8V logic

compatible thresholds, ensuring both TTL and CMOS

logic compatibility when operating within the valid

supply voltage range. The switch of the TMUX1101

is turned on when SEL is Logic 1, while TMUX1102

is turned on when SEL is Logic 0. Fail-Safe Logic

circuitry allows voltages on the SEL pin to be applied

before the supply pin, protecting the device from

potential damage.

The TMUX110x devices are part of the precision

switches and multiplexers family. 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.

Device Information

PART NUMBER

CONTROL LOGIC(1)

PACKAGE(2)

TMUX1101

TMUX1102

Active High

DCK (SC70, 5)

Active Low

DBV (SOT-23, 5)

(1)

See Device Comparison.

(2)

For more information see Section 12.

TMUX1101

SEL

S

D

TMUX1102

SEL

S

ALL SWITC HES SHOWN FOR A LOG IC 0 INPUT

D

TMUX110x Block Diagrams

TMUX1101, TMUX1102

SCDS410D – MARCH 2019 – 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.