Texas Instruments TMUX130xA/TMUX130xA-Q1 CMOS Multiplexers

Texas Instruments TMUX130xA/TMUX130xA-Q1 CMOS Multiplexers are general-purpose complementary metal-oxide semiconductor (CMOS) multiplexers (MUX). The TMUX1308A is an 8:1, 1-channel (single-ended) mux, while the TMUX1309A is a 4:1, 2-channel (differential) mux. The devices support bidirectional digital and analog signals on the drain (Dx) and source (Sx) pins, ranging from GND to VDD. The Texas Instruments TMUX130xA devices have an internal injection current control feature, eliminating the need for an external diode, and are typically used to keep the input signals within the supply voltage and protect the switch. The internal injection current control circuitry allows signals on disabled or enabled signal paths to exceed the supply voltage. Disabled channels with voltages above VDD are prevented from affecting the signal of the enabled signal path. 

The TMUX130xA devices do not have an internal diode path to the supply pin, eliminating the risk of damaging components connected to the supply pin or providing unintended power to the supply rail. All logic inputs have 1.8V logic-compatible thresholds, allowing for CMOS and TTL logic compatibility when operating with a valid supply voltage. Protecting the device from potential damage, the fail-safe logic circuitry allows voltages on the control pins to be applied before the supply pin.

Features

  • Injection current control
  • Back-powering protection
    • No ESD diode path to VDD
  • 1.62V to 5.5V wide supply range
  • Low ON-capacitance
  • Bidirectional signal path
  • Optimized for high-impedance loads
  • Rail-to-rail operation
  • 1.8V logic compatible
  • Fail-safe logic
  • Break-before-make switching
  • Short-to-battery protection for ON and OFF channels
  • Functional safety-capable
    • Documentation available to aid functional safety system design
  • TMUX1308A is pin-compatible with industry-standard 4051, 4851, and 1308 multiplexers
  • TMUX1309A is pin-compatible with industry-standard 4052, 4852, and 1309 multiplexers

Applications

  • Analog and digital multiplexing and demultiplexing
  • Diagnostics and monitoring
  • Data center switch
  • Remote radio unit (RRU)
  • Rack server
  • Electricity meter
  • Appliances
  • Air conditioner units
  • Multifunction printers
  • String inverter
  • IP network camera
  • Currency counters
  • Off-highway vehicle control systems

Functional Block Diagrams

Block Diagram - Texas Instruments TMUX130xA/TMUX130xA-Q1 CMOS Multiplexers
Publicado: 2024-08-21 | Actualizado: 2025-05-15