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Product Detailed Parameters
- Description：100-V, FLAT RON, DUAL 4:1 MULTIP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SP4T - NO
- Multiplexer/Demultiplexer Circuit：4:01
- On-State Resistance (Max)：48Ohm
- Channel-to-Channel Matching (ΔRon)：650mOhm
- Voltage - Supply, Single (V+)：10V ~ 100V
- Voltage - Supply, Dual (V±)：±10V ~ 50V
- Switch Time (Ton, Toff) (Max)：15µs, 3µs
- -3db Bandwidth：380MHz
- Charge Injection：-150pC
- Channel Capacitance (CS(off), CD(off))：3pF, 10pF
- Current - Leakage (IS(off)) (Max)：15nA
- Crosstalk：-110dB @ 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 TMUX8109RUMR is a dual-channel 4:1 analog multiplexer from Texas Instruments, housed in a 16-pin WQFN package. It supports supply voltage differentials from 10 V to 100 V across single, dual, or asymmetric configurations. The device features bidirectional signal paths with low on-resistance flatness of 0.5 Ω and low input leakage of 40 pA. Logic inputs support 1.8 V, 3.3 V, and 5 V levels up to 48 V. Key electrical parameters include a maximum on-resistance of 55 Ω, transition time of 3 µs, turn-off time of 650 ns, and propagation delay of 550 ps. Operating temperature ranges from -40°C to +125°C.
Feature Summary
- Supports high supply voltages up to 100 V with consistent parametric performance across the entire range.
- Features latch-up immunity for reliable operation in harsh environments.
- Includes fail-safe logic allowing control signals up to 48 V independent of power supply.
- Provides bidirectional signal paths with break-before-make switching capability.
Applications
- High voltage bidirectional switching
- Semiconductor test equipment
- Data acquisition systems (DAQ)
- Programmable logic controllers (PLC)
Procurement Notes
Verify the specific ordering suffix RUM to confirm the WQFN-16 package type. Ensure the design accounts for thermal dissipation requirements associated with this package style. Confirm that the application voltage differential remains within the 10 V to 100 V recommended operating conditions. Validate logic level compatibility with the 1.8 V to 48 V input range before integration.
Selection Notes
Select the TMUX8109RUMR when a dual-channel 4:1 configuration is required for high-voltage applications. This part is suitable for designs needing latch-up immunity and fail-safe logic protection. Compare against the TMUX8108 if an 8:1 single-channel topology is preferred instead. Consider the WQFN package size constraints relative to available PCB real estate.
Part Context
This component belongs to the TMUX810x family of high-voltage analog multiplexers. It shares core specifications with the TMUX8108 but differs in channel configuration. The RUM suffix specifically denotes the smaller WQFN package variant compared to the standard TSSOP option.
Replacement Considerations
The TMUX8108 serves as a functional alternative within the same family, offering an 8:1 single-channel configuration instead of the 4:1 dual-channel setup. Both devices share identical voltage capabilities and logic interfaces.
