1 Features

• Wide Supply Range: 1.5V to 5.5V

• Low On-Capacitance: 3.3pF

• Low On-Resistance: 2Ω

• High Bandwidth: 3GHz

• -40°C to +125°C Operating Temperature

• 1.8V Logic Compatible

• Supports Input Voltage Beyond Supply

• Integrated Pull Down Resistor on Logic Pins

• Bidirectional Signal Path

• Fail-Safe Logic

• Powered-off protection up to 3.6V

– Pinout compatible to SN74CBTLV3126

– Pinout compatible (logic variant) of

SN74CBTLV3125

2 Applications

• Servers

• Wired Networking

• Wireless Infrastructure

• Data Center Switches & Routers

• PC/Notebooks

• Building Automation

• ePOS

• Motor Drives

• Appliances

• Battery-Powered Equipment

• JTAG Isolation

• SPI Isolation

3 Description

The TMUX1511 is a complementary metal-oxide

semiconductor (CMOS) switch. The TMUX1511 offers

1:1 SPST switch configuration with 4 independently

controlled channels. Wide operating supply of

1.5V to 5.5V allows for use in a broad array

of applications from servers and communication

equipment to industrial applications. The device

supports bidirectional analog and digital signals on the

source (Sx) and drain (Dx) pins and can pass signals

above supply up to VDD x 2, with a maximum input/

output voltage of 5.5V.

Up to 3.6V on the signal path of the TMUX1511

provides isolation when the supply voltage is removed

(VDD = 0V). Without this protection feature, switches

can back-power the supply rail through an internal

ESD diode and cause potential damage to the

system.

Fail-Safe Logic circuitry allows voltages on the logic

control pins to be applied before the supply pin,

protecting the device from potential damage. All logic

control inputs have 1.8V logic compatible thresholds,

ensuring both TTL and CMOS logic compatibility

when operating in the valid supply voltage range.