Product details

Configuration 2:1 SPDT Number of channels (#) 1 Power supply voltage - single (V) 1.2, 1.8, 2.5, 3.3, 5 Protocols Analog Ron (Typ) (Ohms) 3 CON (Typ) (pF) 23 ON-state leakage current (Max) (µA) 0.08 Bandwidth (MHz) 250 Operating temperature range (C) -40 to 125 Features 1.8-V compatible control inputs, Break-before-make, Fail-safe logic Input/output continuous current (Max) (mA) 30 Rating Catalog Supply current (Typ) (uA) 0.003
Configuration 2:1 SPDT Number of channels (#) 1 Power supply voltage - single (V) 1.2, 1.8, 2.5, 3.3, 5 Protocols Analog Ron (Typ) (Ohms) 3 CON (Typ) (pF) 23 ON-state leakage current (Max) (µA) 0.08 Bandwidth (MHz) 250 Operating temperature range (C) -40 to 125 Features 1.8-V compatible control inputs, Break-before-make, Fail-safe logic Input/output continuous current (Max) (mA) 30 Rating Catalog Supply current (Typ) (uA) 0.003
SOT-23 (DBV) 6 5 mm² 2.9 x 1.6 SOT-SC70 (DCK) 6 4 mm² 2 x 2.1
  • Rail to rail operation
  • Bidirectional signal path
  • 1.8 V Logic compatible
  • Fail-safe logic
  • Low on-resistance: 3 Ω
  • Wide supply range: 1.08 V to 5.5 V
  • -40°C to +125°C Operating temperature
  • Low supply current: 4 nA
  • Transition time: 14 ns
  • Break-before-make switching
  • ESD protection HBM: 2000 V
  • Rail to rail operation
  • Bidirectional signal path
  • 1.8 V Logic compatible
  • Fail-safe logic
  • Low on-resistance: 3 Ω
  • Wide supply range: 1.08 V to 5.5 V
  • -40°C to +125°C Operating temperature
  • Low supply current: 4 nA
  • Transition time: 14 ns
  • Break-before-make switching
  • ESD protection HBM: 2000 V

The TMUX1219 is a general purpose complementary metal-oxide semiconductor (CMOS) single-pole double-throw (SPDT) switch. The TMUX1219 switches between two source inputs based on the state of the SEL pin. Wide operating supply of 1.08 V to 5.5 V allows for use in a broad array of applications from personal electronics to building automation. The device supports bidirectional analog and digital signals on the source (Sx) and drain (D) pins ranging from GND to VDD. A low supply current of 4 nA enables use in portable applications.

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

The TMUX1219 is a general purpose complementary metal-oxide semiconductor (CMOS) single-pole double-throw (SPDT) switch. The TMUX1219 switches between two source inputs based on the state of the SEL pin. Wide operating supply of 1.08 V to 5.5 V allows for use in a broad array of applications from personal electronics to building automation. The device supports bidirectional analog and digital signals on the source (Sx) and drain (D) pins ranging from GND to VDD. A low supply current of 4 nA enables use in portable applications.

All logic inputs have 1.8 V logic compatible thresholds, ensuring both TTL and CMOS logic compatibility when operating in the valid supply voltage range. 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 TMUX1219 5-V Bidirectional, 2:1 General Purpose Switch datasheet (Rev. A) 01 Jun 2020
Application note Selecting the Correct Texas Instruments Signal Switch (Rev. D) 09 Dec 2021
Application note Multiplexers and Signal Switches Glossary (Rev. B) 01 Dec 2021
Application note 1.8 V Logic for Muxes and Signal (Rev. A) 06 Jan 2021
Technical article Protecting your RF amplifier stage with analog switches 19 Feb 2020

Design & development

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Evaluation board

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Speed up your op amp prototyping and testing with the DIP-Adapter-EVM, which provides a fast, easy and inexpensive way to interface with small, surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them directly to existing circuits.

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Simulation model

TMUX1219 IBIS Model

SCDM220.ZIP (8 KB) - IBIS Model
Package Pins Download
SC70 (DCK) 6 View options
SOT-23 (DBV) 6 View options

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