5-pA, ±16.5-V, 1:1 (SPST) 2-channel precision analog switch (active high)


Product details


Configuration 1:1 SPST Number of channels (#) 2 Power supply voltage - single (V) 12, 16 Ron (Typ) (Ohms) 120 ON-state leakage current (Max) (µA) 0.0004 Bandwidth (MHz) 630 Operating temperature range (C) -40 to 125 Features Integrated pulldown resistor on logic pin Input/output continuous current (Max) (mA) 30 Rating Catalog CON (Typ) (pF) 4.2 Supply current (Typ) (uA) 16 open-in-new Find other Analog switches & muxes

Package | Pins | Size

VSSOP (DGS) 10 9 mm² 3 x 3 open-in-new Find other Analog switches & muxes


  • Wide Supply Range: ±5 V to ±16.5 V (dual) or 10 V to 16.5 V (single)
  • Latch-Up Performance Meets 100 mA per JESD78 Class II Level A on all Pins
  • Low On-Capacitance: 4.2 pF
  • Low Input Leakage: 0.5 pA
  • Low Charge Injection: 0.51 pC
  • Rail-to-Rail Operation
  • Low On-Resistance: 120 Ω
  • Fast Switch Turn-On Time: 68 ns
  • Break-Before-Make Switching (TMUX6123)
  • SELx Pin Connectable to VDD With Integrated Pull-down
  • Logic Levels: 2 V to VDD
  • Low Supply Current: 16 µA
  • Human Body Model (HBM) ESD Protection: ± 2kV on All Pins
  • Industry-Standard VSSOP Package
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The TMUX6121, TMUX6122, and TMUX6123 are modern complementary metal-oxide semiconductor (CMOS) devices that have two independently selectable single-pole, single-throw (SPST) switches. The devices work well with dual supplies (±5 V to ±16.5 V), a single supply (10 V to 16.5 V), or asymmetric supplies. All digital inputs have transistor-transistor logic (TTL) compatible thresholds, ensuring both TTL and CMOS logic compatibility.

The switches are turned on with Logic 1 on the digital control inputs in the TMUX6121. Logic 0 is required to turn on switches in the TMUX6122. The TMUX6123 has one switch with similar digital control logic to the TMUX6121 while the logic is inverted on the other switch. The TMUX6123 exhibits break-before-make switching, allowing the device to be used in the cross-point switching application.

The TMUX6121, TMUX6122, and TMUX6123 are part of the precision switches and multiplexers family of devices. The devices have very low leakage current and low charge injection, allowing them to be used in high-precision measurement applications. Low supply current of 16 µA enables the device usage in portable applications.

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Technical documentation

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Type Title Date
* Data sheet TMUX612x ±16.5-V, Low-Capacitance, Low-Leakage-Current, Precision, Dual SPST Switches datasheet Dec. 21, 2018
Application note Multiplexers and Signal Switches Glossary (Rev. A) Jun. 09, 2021
Application note Selecting the Right Texas Instruments Signal Switch (Rev. B) Apr. 02, 2020
Application note System Level Protection for High Voltage Analog Multiplexers Jan. 03, 2017
Technical article Does a low-leakage multiplexer really matter in a high-impedance PLC system? Feb. 19, 2016

Design & development

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Hardware development

document-generic User guide

The EVM-LEADED1 board allows for quick testing and bread boarding of TI's common leaded packages.  The board has footprints to convert TI's D, DBQ, DCT,DCU, DDF, DGS, DGV, and PW surface mount packages to 100mil DIP headers.     

  • Quick testing of TI's leaded surface mount packages 
  • Allows leaded suface mount packages to be plugged into 100mil spaced bread board 
  • Supports TI's 8 most popular leaded packages with a single panel

Design tools & simulation

SCDM206.ZIP (14 KB) - IBIS Model

CAD/CAE symbols

Package Pins Download
VSSOP (DGS) 10 View options

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