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Product Detailed Parameters
- Description：TMUX131RMGR
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SP3T - Open/Closed
- Multiplexer/Demultiplexer Circuit：3:01
- On-State Resistance (Max)：7Ohm
- Channel-to-Channel Matching (ΔRon)：100mOhm
- Voltage - Supply, Single (V+)：2.5V ~ 4.3V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：100µs, 100µs
- -3db Bandwidth：6.5GHz
- Charge Injection：-
- Channel Capacitance (CS(off), CD(off))：1pF
- Current - Leakage (IS(off)) (Max)：2µA
- Crosstalk：-38dB @ 240MHz
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：12-WFQFN
- Supplier Device Package：12-WQFN (1.8x1.8)
- Number of Circuits：2
- Grade：-
- Qualification：-
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Overview
The TMUX131RMGR is a bidirectional analog passive multiplexer featuring two independent channels, each configured as a 3:1 switch. It operates within a supply voltage range of 2.5 V to 4.3 V and supports signal voltages from 0 V to 3.6 V. The device provides a typical on-state resistance (RON) of 5.5 Ω and an on-capacitance (CON) of 1.3 pF, achieving a –3 dB bandwidth of 6.5 GHz. Key electrical parameters include a propagation delay of 50 ps and a typical supply current of 28 µA. It incorporates IOFF protection for powered-down states and overvoltage tolerance up to 5.5 V on all I/O pins without external components.
Feature Summary
- Supports high-speed I3C signals with low capacitance characteristics for minimal signal attenuation.
- Features integrated pull-down resistors on logic pins to prevent floating inputs.
- Includes IOFF protection to prevent current leakage when the power supply is removed.
Applications
- I3C (SenseWire) peripheral switching
- I2C bus expansion in servers and handheld devices
- General protocol switching for UART and LVDS signals
Procurement Notes
Verify the specific ordering suffix RMGR corresponds to the WQFN package with tape-and-reel carrier configuration. Confirm that the RoHS compliance status matches the project requirements before finalizing procurement orders.
Selection Notes
Select this component for applications requiring high bandwidth and low capacitance to preserve signal integrity in high-speed digital protocols. Ensure the control logic voltage levels are compatible with the 1.8-V and 3.3-V supported ranges.
Part Context
This device belongs to the Texas Instruments TMUX131 family of high-performance analog switches. It is designed specifically for compact PCB layouts due to its small form factor while maintaining performance suitable for modern communication standards.
Replacement Considerations
Consult official documentation for verified substitute part numbers. Do not assume cross-compatibility with other series without verifying pinout and electrical specifications.
FAQ
How does the TMUX131 handle signals when the power supply is off?
The device features IOFF protection, which forces all I/O pins into a high-impedance state to prevent current leakage when VDD is 0 V.
What is the maximum voltage tolerance on the I/O pins?
The source and drain pins support overvoltage tolerance up to 5.5 V without requiring additional external components.
Is the device compatible with 1.8-V logic?
Yes, the control inputs (SEL0, SEL1) are compatible with 1.8-V logic regardless of the applied supply voltage.
