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.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | TMUX1219 5-V Bidirectional, 2:1 General Purpose Switch datasheet (Rev. A) | PDF | HTML | 01 Jun 2020 |
| Product overview | Enhancing Wireless Bluetooth Communication for Smart Meters with Multiplexers | PDF | HTML | 24 Jun 2025 | |
| Application brief | How to Prevent Errors in Voltage Readings When Using Multiplexers with High Input Impedance Op-Amps | PDF | HTML | 13 Feb 2025 | |
| Product overview | Enhancing Smart Metering with TI Multiplexers and Analog Switches | PDF | HTML | 28 Jan 2025 | |
| Application brief | 1.8-V Logic for Multiplexers and Signal Switches (Rev. C) | PDF | HTML | 26 Jul 2022 | |
| Application note | Selecting the Correct Texas Instruments Signal Switch (Rev. E) | PDF | HTML | 02 Jun 2022 | |
| Application note | Multiplexers and Signal Switches Glossary (Rev. B) | PDF | HTML | 01 Dec 2021 | |
| Technical article | Protecting your RF amplifier stage with analog switches | PDF | HTML | 19 Feb 2020 |
For additional terms or required resources, click any title below to view the detail page where available.
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOT-23 (DBV) | 6 | Ultra Librarian |
| SOT-SC70 (DCK) | 6 | Ultra Librarian |
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