TMUX7234PWR

Overview

The TMUX7234PWR is a four-channel, 2:1 precision analog switch manufactured by Texas Instruments in a 20-pin TSSOP package. It supports single supply voltages from 4.5 V to 44 V and dual supplies from ±4.5 V to ±22 V. The device features latch-up immunity, low on-resistance of 3 Ω typical, and bidirectional signal paths. Logic inputs are compatible with 1.8 V thresholds, and the component operates within an ambient temperature range of -40°C to +125°C.

Feature Summary

• Latch-up immune design for harsh environments
• Bidirectional signal path supporting rail-to-rail operation
• Fail-safe logic allows control pin voltage application before power rails

Applications

• Factory automation and control systems
• Programmable logic controllers (PLC)
• Data acquisition systems (DAQ)
• Semiconductor test equipment
• Patient monitoring and diagnostics

Procurement Notes

Verify the specific ordering suffix 'PWR' corresponds to the TSSOP-20 package when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributors. Ensure the procurement channel provides valid traceability for production-grade components.

Selection Notes

Select this component for applications requiring high-voltage analog switching up to 44 V. The 20-pin TSSOP package is suitable for surface-mount assembly. Verify that the required channel count matches the four independent SPDT switches available in this specific part number.

Part Context

This part belongs to the TMUX72xx family of CMOS multiplexers designed for precision switching. The TMUX7234 variant specifically integrates four channels, distinguishing it from lower-channel-count models like the TMUX7236. The PWR suffix identifies the physical TSSOP packaging format used for board integration.

Replacement Considerations

TMUX7234RRQR offers identical electrical specifications but utilizes a WQFN-20 package instead of TSSOP-20.