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1-ch, 8:1 general-purpose analog multiplexer with 1.8V logic control

Availability: 1,165


Package | PIN: TSSOP (PW) | 16
Temp: Q (-40 to 125)
Package qty | Carrier: 2,000 | LARGE T&R
Qty Price
1-99 $0.37
100-249 $0.31
250-999 $0.19
1,000+ $0.13


  • AEC-Q100 Qualified for Automotive Applications
    • Device Temperature Grade 1:–40°C to 125°C Ambient Operating Temperature
  • Injection current control
  • Back-powering protection
  • Wide supply range: 1.62 V to 5.5 V
  • Low capacitance
  • Bidirectional signal path
  • Rail-to-Rail operation
  • 1.8 V Logic compatible
  • Fail-safe logic
  • Break-before-make switching
  • ESD protection HBM: 2000 V
  • TMUX1308-Q1 - Pin compatible with:
    • Industry standard 4051 and 4851 multiplexers

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Texas Instruments  PTMUX1308QPWRQ1

The TMUX1308-Q1 device is a general purposecomplementary metal-oxide semiconductor (CMOS) multiplexer (MUX). The TMUX1308-Q1 offers 8:1single-ended channels. The device supports bidirectional analog and digital signals on thesource (Sx) and drain (Dx) pins ranging from GND to VDD.

The TMUX13xx-Q1 have an internal injection current control feature which eliminates theneed for external diode/resistor networks typically used to protect the switch and keep the inputsignals within the supply voltage. The internal injection current control circuitry allows signalson disabled signal paths to exceed the supply voltage without affecting the signal of the enabledsignal path. Additionally, the TMUX1308-Q1 does not have any internal diode path to the supply pin,which eliminates the risk of damaging components connected to the supply pin, or providingunintended power to the system supply rail.

All logic inputs have 1.8 V logic compatible thresholds, ensuring both TTL and CMOSlogic compatibility when operating with a valid supply voltage. Fail-Safe Logic circuitry allows voltages on the control pinsto be applied before the supply pin, protecting the device from potential damage.