2-channel, 4:1 general-purpose analog multiplexer with 1.8-V logic control


Product details


Configuration 4:1 Number of channels (#) 2 Power supply voltage - single (V) 1.8, 2.5, 3.3, 5 Ron (Typ) (Ohms) 59 ON-state leakage current (Max) (µA) 0.8 Bandwidth (MHz) 500 Operating temperature range (C) -40 to 125 Features 1.8-V compatible control inputs, Break-before-make, Injection current control Input/output continuous current (Max) (mA) 100 Rating Catalog CON (Typ) (pF) 15 Supply current (Typ) (uA) 0.003 open-in-new Find other Analog switches & muxes

Package | Pins | Size

SOT-23-THN (DYY) 16 8 mm² 4.2 x 2 TSSOP (PW) 16 22 mm² 5 x 4.4 WQFN (BQB) 16 9 mm² 3.5 x 2.5 open-in-new Find other Analog switches & muxes


  • Injection Current Control
  • Back-Powering Protection
    • No ESD Diode Path to VDD
  • 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
  • Functional Safety-Capable
  • TMUX1308 - Pin Compatible with:
    • Industry Standard 4051 and 4851 Multiplexers
  • TMUX1309 - Pin Compatible with:
    • Industry Standard 4052 and 4852 Multiplexers
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The TMUX1308 and TMUX1309 are general purpose complementary metal-oxide semiconductor (CMOS) multiplexers (MUX). The TMUX1308 is an 8:1, 1-channel (single-ended) mux, while the TMUX1309 is a 4:1, 2-channel (differential) mux. The devices support bidirectional analog and digital signals on the source (Sx) and drain (Dx) pins ranging from GND to VDD.

The TMUX13xx devices have an internal injection current control feature which eliminates the need for external diode and 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 TMUX13xx devices do 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 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.

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Technical documentation

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Type Title Date
* Data sheet TMUX13xx 5-V, Bidirectional 8:1, 1-Channel and 4:1, 2-C (Replaced by SCDS426) datasheet (Rev. D) Oct. 19, 2020
Application note Selecting the Right Texas Instruments Signal Switch (Rev. C) Aug. 06, 2021
Application note Multiplexers and Signal Switches Glossary (Rev. A) Jun. 09, 2021

Design & development

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Hardware development

document-generic User guide
The 16DYYPWEVM test board provides a dual footprint for SOT-23 THIN (DYY) and TSSOP (PW) packages.  This test board is used for quick prototyping and testing of integrated ciructs in 16 pin SOT-23 THIN (DYY) and TSSOP (PW) packages. 
  • Dual footprint of  SOT-23 THIN (DYY) and TSSOP (PW) packages
  • Quick prototyping and testing of 16 pin IC in SOT-23 THIN (DYY) and TSSOP (PW) packages
  • All 16 signals paths include 0603 pads for pull-up, pull-down, or load-capacitors
  • Test site with 3 SMB connectors for high speed evalauation for TMUX1574 (...)

Design tools & simulation

SCDM241.ZIP (8 KB) - IBIS Model
SCDM257.ZIP (115 KB) - PSpice Model

CAD/CAE symbols

Package Pins Download
SOT-23-THN (DYY) 16 View options
TSSOP (PW) 16 View options
WQFN (BQB) 16 View options

Ordering & quality

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