TMUX6222DGSR

Overview

The TMUX6222DGSR is a dual-channel, single-pole single-throw (SPST) CMOS analog switch from Texas Instruments. It operates with a single supply of 4.5 V to 36 V or dual supplies of ±4.5 V to ±18 V. The device features a typical on-resistance of 2.1 Ω and supports bidirectional signal flow. Key electrical parameters include a maximum on-resistance of 3.2 Ω at 36 V single supply, an off-isolation of -70 dB at 100 kHz, and a bandwidth of 45 MHz. It functions within a temperature range of -40°C to +125°C and utilizes 1.8 V logic compatible inputs.

Feature Summary

• Fail-safe logic circuitry allows control pin voltages to be applied before power supply rails without damage.
• Integrated pull-down resistors on logic pins ensure defined states when inputs are floating.
• Rail-to-rail operation enables full voltage range signal transmission across source and drain pins.

Applications

• Wired networking equipment
• Remote radio units in telecommunications
• Patient monitoring and diagnostic systems
• Ultrasound scanners
• Optical test and networking equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and reel specifications. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the datasheet revision date to confirm the accuracy of thermal and electrical characteristics before finalizing procurement orders.

Selection Notes

Select this component for applications requiring high voltage tolerance up to 36 V and low on-resistance. Consider the VSSOP-10 package size for space-constrained designs. Verify that the logic input levels match the system's control voltage, noting compatibility with 1.8 V logic. Evaluate thermal dissipation limits if operating near maximum continuous current ratings.

Part Context

This part belongs to the TMUX622x family of precision multiplexers and switches. It shares architectural similarities with the TMUX6221 but differs in channel configuration. The series is designed for high-performance analog switching in industrial and medical environments, offering robust latch-up immunity and low leakage currents suitable for precision measurement tasks.

Replacement Considerations

Direct functional substitutes within the same family include the TMUX6221. Verify pin compatibility and electrical specifications such as on-resistance and supply voltage ranges before substitution. Consult the official cross-reference guide for any alternative packages or updated revisions.