TMUX8212PWR

Overview

The TMUX8212PWR is a high-voltage analog switch IC featuring four independently controllable 1:1 single-pole single-throw (SPST) channels. It operates with dual supplies from ±10 V to ±50 V, asymmetric supplies, or a single supply from 10 V to 100 V. The device supports bidirectional signal paths and includes fail-safe logic capable of handling up to 48 V independent of the power supply. Key electrical parameters include a maximum on-resistance of 10 Ω, continuous current capability of 200 mA per channel, and low off-leakage current of 10 pA. It provides latch-up immunity and integrates pull-down resistors on logic pins.

Feature Summary

• Supports high voltage operation across dual, asymmetric, and single supply configurations up to 100 V differential.
• Features fail-safe logic inputs that tolerate voltages up to 48 V regardless of the main power supply state.
• Provides consistent parametric performance across the entire operating supply voltage range.
• Eliminates the need for an external logic rail by integrating internal logic power.

Applications

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

Procurement Notes

Verify the specific package variant against the datasheet orderable addendum. Confirm that the PWR suffix corresponds to the TSSOP-16 package type required for the design. Ensure the logic control input configuration matches the 'Logic High' activation characteristic of the TMUX8212 variant rather than the TMUX8211 or TMUX8213.

Selection Notes

Select this component when designing circuits requiring high voltage isolation with standard logic control levels. The TMUX8212 is specifically chosen over other family members because its switches activate when the SEL pin is driven high. Verify that the thermal dissipation requirements for the TSSOP package are met if multiple channels conduct simultaneously at high temperatures.

Part Context

This part belongs to the TMUX821x family of high-voltage analog switches manufactured by Texas Instruments. The family includes the TMUX8211, TMUX8212, and TMUX8213, which differ primarily in their logic activation states. The TMUX8212 specifically activates channels upon receiving a high logic level on the select pins.

Replacement Considerations

Direct pin-to-pin replacements within the same family include the TMUX8211 and TMUX8213. Note that these variants have different logic activation polarities; the TMUX8211 activates on logic low, while the TMUX8213 activates on both logic high and low. Ensure the control logic polarity is compatible before substituting.