TMUX1308-Q1 1-ch, 8:1 general-purpose analog multiplexer with 1.8V logic control |

This product is prototype/experimental and has not been released to the market. Testing and final processes may not be complete. This product may be subject to further changes or possible discontinuation.
1-ch, 8:1 general-purpose analog multiplexer with 1.8V logic control


Sample availability

Preproduction samples are available (PTMUX1308QDYYRQ1) . Request now

Preproduction samples are available (PTMUX1308QPWRQ1) . Request now


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

The TMUX13xx-Q1 have an internal injection current control feature which eliminates the need for external diode/resistor networks typically used to protect the switch and keep the input signals within the supply voltage. The internal injection current control circuitry allows signals on disabled signal paths to exceed the supply voltage without affecting the signal of the enabled signal 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 providing unintended power to the system supply rail.

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


  • 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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Part number Order Configuration Number of channels (#) Ron (Typ) (Ohms) Bandwidth (MHz) Rating Operating temperature range (C) Package Group Input/output continuous current (Max) (mA) Supply current (Typ) (uA) Features ON-state leakage current (Max) (µA) CON (Typ) (pF)
TMUX1308-Q1 Order now 8:1     1     59     500     Automotive     -40 to 125     SOT-23-THN | 16
TSSOP | 16    
100     0.003     1.8-V compatible control inputs
Injection current control    
0.8     15    
CD4051B-Q1 Order now 8:1     1     125     20     Automotive     -40 to 125     TSSOP | 16     10     0.04     Break-before-make     1     30    
CD74HCT4051-Q1 Order now 8:1     1     40     180     Automotive     -40 to 125     SOIC | 16     25     8     Break-before-make     2     25    
SN74HC4851-Q1 Samples not available 8:1     1     150       Automotive     -40 to 125     SOIC | 16
TSSOP | 16    
25     2     Injection current control     1     6.7