TMUX7308FPWR

Overview

The TMUX7308FPWR is a single-channel, 8:1 analog multiplexer from Texas Instruments featuring ±60-V fault protection and latch-up immunity. It operates with dual supplies (±5 V to ±22 V), single supplies (8 V to 44 V), or asymmetric configurations. The device supports 1.8-V logic inputs and includes integrated pull-down resistors on logic pins for fail-safe operation up to 44 V independent of supply voltage. It utilizes a 16-pin TSSOP package.

Feature Summary

• Integrated overvoltage protection tolerates source-to-drain and source-to-supply faults up to ±85 V, while blocking ±60 V relative to ground in both powered and unpowered states.
• Fail-safe logic design allows control signals up to 44 V regardless of power supply status, ensuring known high-impedance states when logic inputs are absent.
• Latch-up immune architecture prevents parasitic current events, maintaining robustness in harsh environments without requiring additional logic rails.

Applications

• Factory automation and control systems
• Programmable logic controllers (PLC)
• Analog input modules
• Semiconductor test equipment
• Data acquisition systems (DAQ)

Procurement Notes

Verify the specific ordering suffix 'PWR' corresponds to the TSSOP-16 package and reel packaging configuration required for your assembly process. Confirm that the component meets RoHS compliance standards applicable to your region. Ensure the datasheet revision matches the production data version to validate electrical characteristics and thermal metrics before finalizing procurement specifications.

Selection Notes

Select this component for applications requiring high-voltage tolerance and precise signal routing in compact spaces. The 8:1 configuration suits single-ended signal multiplexing needs. Consider the TSSOP package dimensions against available PCB real estate. Verify that the 1.8-V logic compatibility aligns with the system's control interface voltage levels to ensure reliable switching performance across the specified temperature range.

Part Context

This part belongs to the TMUX730xF family, which also includes the TMUX7309F dual 4:1 multiplexer variant. Both devices share identical fault protection, latch-up immunity, and logic interface features. The primary distinction lies in the channel count and configuration, with the TMUX7308F providing eight selectable sources for a single drain output.

Replacement Considerations

The TMUX7309F serves as a functional alternative within the same family but offers a dual 4:1 configuration instead of an 8:1 single-channel layout. Direct pin-compatible substitution requires verifying that the target application utilizes only four channels per switch bank or can accommodate the differential structure of the TMUX7309F.