TMUX6234PWR

Overview

The TMUX6234PWR is a precision analog switch IC featuring four independently controlled SPDT channels in a 20-pin TSSOP package. It supports single supply voltages from 4.5V to 36V, dual supplies from ±4.5V to ±18V, and asymmetric configurations. The device offers low on-resistance (typical 3.6Ω at 36V), high current support up to 400mA, and bidirectional signal paths ranging from VSS to VDD. Key electrical characteristics include low crosstalk (-105dB), propagation delay of 450ps, and charge injection of 3pC. Logic inputs are compatible with 1.8V signals, and the device operates within an ambient temperature range of -40°C to +125°C.

Feature Summary

• Four independent SPDT switches with a common enable pin for channel control
• Bidirectional signal path supporting rail-to-rail operation across wide voltage ranges
• Fail-safe logic circuitry allowing control pin voltage application prior to power supply
• Low on-resistance and low charge injection suitable for high-precision measurement applications

Applications

• Remote radio units (RRU)
• Active antenna system mMIMO (AAS)
• Programmable logic controllers (PLC)
• Analog input modules
• Semiconductor test equipment

Procurement Notes

Verify the specific ordering suffix 'PWR' corresponds to the 20-pin TSSOP package variant when sourcing components. Confirm that the required operating conditions align with the specified single or dual supply ranges. Ensure ESD protection protocols are followed during handling, as the device is sensitive to electrostatic discharge despite having rated protection levels.

Selection Notes

Select the TMUX6234PWR when four independent SPDT switching functions are required in a compact surface-mount package. Consider this component for designs needing high current capability and low on-resistance across a wide voltage span. Evaluate thermal performance requirements, as the TSSOP package has higher thermal resistance compared to WQFN alternatives. Verify logic level compatibility with the controlling microcontroller or FPGA.

Part Context

The TMUX6234 belongs to Texas Instruments' precision switches and multiplexers family, designed for high-performance analog signal routing. The PWR suffix specifically denotes the 20-lead Thin-Shrink Small-Outline Package (TSSOP). This part complements other variants like the RRQ (WQFN) package option, offering designers flexibility in PCB layout and thermal management strategies while maintaining identical electrical specifications.

Replacement Considerations

The TMUX6234RRQR serves as a direct functional substitute with identical electrical characteristics but utilizes a 20-pin WQFN package instead of TSSOP. Designers must account for differences in footprint dimensions and thermal dissipation capabilities when swapping between these package types.