TMUX8211RUMR

Overview

The TMUX8211RUMR is a high-voltage analog switch IC featuring four independently controllable single-pole single-throw (SPST) channels. It supports dual supply voltages from ±10 V to ±50 V, asymmetric supplies, and single supplies up to 100 V. The device maintains an on-resistance of 5 Ω with a flatness of 0.05 Ω across the entire voltage range. Key electrical specifications include a continuous current capacity of 200 mA, low input leakage of 10 pA, and crosstalk of -110 dB. It operates with 1.8-V logic inputs and provides fail-safe logic capability up to 48 V independent of the power supply.

Feature Summary

• High voltage capability supporting up to 100 V single supply or ±50 V dual supply operation
• Consistent parametric performance across the full supply voltage range
• Fail-safe logic allowing control signals up to 48 V independent of supply rails
• Integrated latch-up immunity for reliable operation in harsh environments

Applications

• High voltage bidirectional switching
• Semiconductor test equipment
• Data acquisition systems (DAQ)
• Programmable logic controllers (PLC)

Procurement Notes

Verify the specific package variant, as the RUM suffix denotes the WQFN-16 package. Confirm that the design accommodates the required thermal dissipation characteristics for the selected operating temperature range. Ensure logic levels align with the 1.8-V compatible inputs and that supply voltages remain within the absolute maximum ratings to prevent damage.

Selection Notes

Select this component when high voltage handling up to 100 V is required alongside low on-resistance flatness. It is suitable for applications needing fail-safe logic control independent of the main power supply. Consider the WQFN-16 package size and thermal resistance if space constraints or heat dissipation are critical factors in the system design.

Part Context

The TMUX8211 belongs to the Texas Instruments TMUX821x family of high-voltage analog switches. This family includes variants like the TMUX8212 and TMUX8213, which differ primarily in their logic activation states. All devices share similar electrical characteristics and package options, designed for robust signal routing in high-voltage industrial and test environments.

Replacement Considerations

Direct functional substitutes within the same family include the TMUX8212 and TMUX8213. These parts share identical electrical specifications and pinouts but differ in logic polarity: TMUX8212 activates on logic high, while TMUX8213 activates on both logic high and low. Verify logic interface compatibility before substitution.