TMUX6211RUMR

Overview

The TMUX6211RUMR is a Texas Instruments analog switch IC featuring four independent 1:1 single-pole, single-throw (SPST) channels in a WQFN-16 package. It operates on a single supply from 4.5V to 36V or dual supplies of ±4.5V to ±18V. The device supports bidirectional signals ranging from VSS to VDD with a maximum on-resistance of 2.7Ω at 25°C and up to 4.3Ω across the full temperature range. It offers high current support up to 330mA in the WQFN package and includes integrated pull-down resistors on logic pins for fail-safe operation.

Feature Summary

• Four independently selectable SPST channels with rail-to-rail bidirectional signal handling
• Low on-resistance and low leakage currents suitable for precision measurement applications
• Integrated pull-down resistors on logic inputs for fail-safe control without external components
• Compatible with 1.8V logic levels for direct interface with low-voltage processors

Applications

• Sample-and-hold circuits
• Feedback gain switching
• Signal isolation
• Data acquisition systems (DAQ)
• Patient monitoring and diagnostics

Procurement Notes

Verify the specific ordering suffix RUMR corresponds to the WQFN-16 package and reel packaging configuration required for your assembly process. Confirm that the logic control input polarity matches the Logic Low requirement of the TMUX6211 variant, as opposed to the Logic High variants available in the same family. Ensure voltage ratings align with your system's power supply rails.

Selection Notes

Select the TMUX6211RUMR when low leakage current and precise switching are critical for the application. Choose this part over TMUX6212 or TMUX6213 if the control logic requires active-low signaling. Consider the WQFN-16 package for its thermal performance and higher current capability compared to TSSOP options. Verify that the 1.8V logic compatibility meets the output levels of the driving microcontroller or FPGA.

Part Context

The TMUX6211RUMR belongs to the TMUX621x family of precision switches from Texas Instruments. This series includes TMUX6211, TMUX6212, and TMUX6213, which share similar electrical characteristics but differ in logic control input requirements. The TMUX6211 specifically utilizes Logic Low to activate channels, distinguishing it from the Logic High activated TMUX6212 and the combined Logic Low/High TMUX6213.

Replacement Considerations

TMUX6212RUMR requires Logic High activation instead of Logic Low. TMUX6213RUMR supports both Logic Low and Logic High activation modes.