TMUX1237

SEL

S1

D

S2

RF Output

TMUX1237

SEL

1.8 V

DAC

0 V

5 V

RF Input

Product

Folder

Order

Now

Technical

Documents

Tools &

Software

Support &

Community

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.

TMUX1237

SCDS424A – DECEMBER 2019 – REVISED MARCH 2020

TMUX1237 3-Ω Low RON, 5-V, 2:1 (SPDT) General Purpose Switch

With No Overshoot When Switching Inputs

1

1 Features

1

•

No Overshoot When Switching Inputs

•

Rail-to-rail Operation

•

Bidirectional Signal Path

•

1.8 V Logic Compatible

•

Fail-safe Logic

•

Low On-resistance: 3 Ω

•

Wide Supply Range: 1.08 V to 5.5 V

•

-40°C to +125°C Operating Temperature

•

Low Supply Current: 7 nA

•

Break-before-make Switching

•

ESD Protection HBM: 2000 V

2 Applications

•

Analog and Digital Switching

•

I2C and SPI Bus Multiplexing

•

Remote Radio Units (RRU)

•

Active Antenna System mMIMO (AAS)

•

Rack Server

•

Network Interface Card (NIC)

•

Barcode Scanner

•

Building Automation

•

Analog Input Module

•

Motor Drives

•

Video Surveillance

•

Electronic Point of Sale

•

Desktop PC

•

Appliances

3 Description

The TMUX1237 is a general purpose 2:1, single-pole

double-throw (SPDT), switch that supports a wide

operating range of 1.08 V to 5.5 V. The device

supports bidirectional analog and digital signals on

the source (Sx) and drain (D) pins ranging from GND

to VDD. The state of the select pin (SEL) controls

which of the two sources pins are connected to the

drain pin. Additionally, the TMUX1237 has a low

supply current of 7 nA which enables the device to be

used in a host of handheld or low power applications.

The

TMUX1237

improves

system

reliability

by

eliminating overshoot that might occur in a system

due to switching between two voltage levels on the

source (Sx) pins. In addition, the TMUX1237 also

maintains fast switching times, enabling it to improve

system performance for a wide range of applications

from

communications

equipment

to

building

automation.

All

logic

inputs

have

1.8

V

logic

compatible

thresholds, 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.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TMUX1237

SC70 (6)

2.00 mm × 1.25 mm

(1) For all available packages, see the package option addendum

at the end of the data sheet.

SPACER

SPACER

TMUX1237 Block Diagram

Application Example