Texas Instruments TMUX7219M CMOS 2:1 (SPDT) Precision Switch

Texas Instruments TMUX7219M CMOS 2:1 (SPDT) Precision Switch

Texas Instruments TMUX7219M CMOS 2:1 (SPDT) Precision Switch is a precision switch with latch-up immunity in a single channel, 2:1 (SPDT) configuration. The device can have a single supply (4.5V to 44V), dual supplies (±4.5V to ±22V), or asymmetric supplies (such as VDD = 12V, VSS = –5V). The TMUX7219M supports bidirectional analog and digital signals on the source (Sx) and drain (D) pins ranging from VSS to VDD.

The Texas Instruments TMUX7219M can be enabled or disabled by controlling the EN pin. When disabled, both signal path switches are off. When enabled, the SEL pin can be used to turn on signal path 1 (S1 to D) or signal path 2 (S2 to D). All logic control inputs support logic levels from 1.8V to VDD. This feature ensures TTL and CMOS logic compatibility when operating in the valid supply voltage range. A Fail-Safe Logic circuitry allows voltages on the control pins to be applied before the supply pin, protecting the device from potential damage.


  • ±4.5V to ±22V dual supply range
  • 4.5V to 44V single supply range
  • –55°C to +125°C operating temperature
  • 2.1Ω low on-resistance
  • -10pC low charge injection
  • 330mA (maximum) high current support
  • Latch-up immune
  • 1.8V logic compatible
  • Integrated pull-up and pull-down resistors on logic pins
  • Fail-safe logic
  • Rail-to-rail operation
  • Bidirectional signal path
  • Break-before-make switching

more information: https://www.ti.com/product/TMUX7219

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