Quad SPST switches can be used in high-precision measurement applications

19-12-2018 | Texas Instruments | Connectors, Switches & EMECH

Texas Instruments TMUX611x Quad SPST Switches are modern CMOS devices that have four independently selectable SPST switches. The devices work well with dual supplies (±5Vto ±16.5V), a single supply (10V to 16.5V), or asymmetric supplies. All digital inputs have TTL compatible thresholds, securing TTL/ CMOS logic compatibility.

The switches are switched on with Logic 0 on the digital control inputs in the TMUX6111. Logic 1 is needed to switch on switches in the TMUX6112. The TMUX6113 has two switches with comparable digital control logic to the TMUX6111 while the logic is inverted on the other two switches. The TMUX6113 displays break-before-make switching, enabling the device to be used in the cross-point switching application.

The devices have very low leakage current and charge injection, enabling them to be used in high-precision measurement applications. Low supply current of 17µA allows the device usage in portable applications.

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