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Product Detailed Parameters
- Description：IC SWITCH SPDT X 1 2.8OHM 8VSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SPDT
- Multiplexer/Demultiplexer Circuit：2:01
- On-State Resistance (Max)：2.8Ohm
- Channel-to-Channel Matching (ΔRon)：100mOhm
- Voltage - Supply, Single (V+)：4.5V ~ 44V
- Voltage - Supply, Dual (V±)：±4.5V ~ 22V
- Switch Time (Ton, Toff) (Max)：168ns, 180ns
- -3db Bandwidth：40MHz
- Charge Injection：-16pC
- Channel Capacitance (CS(off), CD(off))：34pF, 48pF
- Current - Leakage (IS(off)) (Max)：5nA
- Crosstalk：-106dB @ 1MHz
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：8-VSSOP
- Number of Circuits：1
- Grade：-
- Qualification：-
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Overview
The TMUX7219MDGKR is a single-channel, 2:1 (SPDT) precision analog switch manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 44 V for single-supply or ±2.25 V to ±22 V for dual-supply configurations. The device features a maximum on-resistance of 2.8 Ohms and supports logic inputs compatible with 1.8-V signals. It is housed in an 8-pin VSSOP package and is rated for operation between -40°C and +125°C.
Feature Summary
- High-voltage capability supporting up to 44 V single-supply operation
- Latch-up immunity for enhanced reliability under fault conditions
- Low on-resistance ensuring minimal signal attenuation
- Compatible with low-voltage logic control interfaces
Applications
- Industrial process control signal routing
- Data acquisition systems requiring high-voltage switching
- Test and measurement equipment signal paths
- Medical instrumentation signal conditioning
Procurement Notes
Verify the specific suffix 'DGKR' against the manufacturer's official documentation to confirm the tape-and-reel packaging configuration and temperature grade. Ensure that the component meets all RoHS compliance requirements relevant to the target market before finalizing procurement specifications.
Selection Notes
Select this component when a single SPDT switch is required for high-voltage applications exceeding standard 5 V or 12 V limits. Consider the 2.8 Ohm on-resistance and 168 ns propagation delay for bandwidth constraints. Verify that the VSSOP-8 package dimensions fit the available PCB real estate compared to alternative packages like WQFN.
Part Context
This part belongs to the TMUX7219 family of precision analog switches designed for robust performance in demanding environments. The family shares common electrical characteristics but varies in channel count and package type. The TMUX7219 specifically addresses the need for a single-channel solution with high voltage tolerance and latch-up protection.
Replacement Considerations
Direct substitutes include other Texas Instruments parts from the same family, such as the TMUX7219M or TMUX7219-Q1, provided the package and suffix match. Cross-manufacturer replacements require careful verification of pinout compatibility, voltage ratings, and on-resistance specifications.
