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Product Detailed Parameters
- Description：IC SWITCH 4PST X 2 5.5OHM 16WQFN
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Switch Circuit：4PST
- Multiplexer/Demultiplexer Circuit：4:01
- On-State Resistance (Max)：5.5Ohm
- Channel-to-Channel Matching (ΔRon)：200mOhm
- Voltage - Supply, Single (V+)：4.5V ~ 44V
- Voltage - Supply, Dual (V±)：±4.5V ~ 22V
- Switch Time (Ton, Toff) (Max)：205ns, 268ns
- -3db Bandwidth：51MHz
- Charge Injection：-5pC
- Channel Capacitance (CS(off), CD(off))：15pF, 67pF
- Current - Leakage (IS(off)) (Max)：1nA
- Crosstalk：-85dB @ 1MHz
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-WQFN Exposed Pad
- Supplier Device Package：16-WQFN (4x4)
- Number of Circuits：2
- Grade：-
- Qualification：-
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Overview
The TMUX7209RUMR is a precision 4:1, two-channel multiplexer from Texas Instruments housed in a 16-pin WQFN package. It supports single supply voltages from 4.5V to 44V and dual supplies from ±4.5V to ±22V. The device features latch-up immunity, low on-resistance (typical 4Ω), and low charge injection (3pC). Logic inputs are compatible with 1.8V signals and include integrated pull-down resistors. It operates within an ambient temperature range of -40°C to +125°C.
Feature Summary
- Latch-up immune design prevents high current events caused by overvoltage.
- Bidirectional signal path supports analog and digital signals across the full supply range.
- Integrated pull-down resistors on logic pins ensure fail-safe operation.
Applications
- Factory automation and control systems
- Programmable logic controllers (PLC)
- Analog input modules
- Semiconductor test equipment
Procurement Notes
Verify the specific ordering suffix RUMR corresponds to the WQFN-16 package configuration. Confirm that the component meets RoHS compliance requirements for your assembly process. Ensure the datasheet revision matches the intended design specifications before finalizing procurement orders.
Selection Notes
Select this part when a 4:1 multiplexing ratio with two independent channels is required. It is suitable for applications needing high voltage tolerance up to 44V and compatibility with low-voltage 1.8V logic controllers. Consider thermal dissipation limits if operating at maximum continuous current ratings.
Part Context
This component belongs to the TMUX720x family of precision switches and multiplexers. It shares architectural similarities with the TMUX7208 but provides a different channel configuration. The family is designed for harsh environments requiring robust protection against parasitic latch-up conditions.
Replacement Considerations
The TMUX7208RUMR is a related device offering an 8:1 single-channel configuration within the same family. Verify pinout compatibility and functional differences before substituting.
