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Product Detailed Parameters
- Description：IC SWITCH SP8T X 1 250OHM 16WQFN
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Switch Circuit：SP8T
- Multiplexer/Demultiplexer Circuit：8:01
- On-State Resistance (Max)：250Ohm
- Channel-to-Channel Matching (ΔRon)：2.5Ohm
- Voltage - Supply, Single (V+)：8V ~ 44V
- Voltage - Supply, Dual (V±)：±5V ~ 22V
- Switch Time (Ton, Toff) (Max)：390ns, 450ns
- -3db Bandwidth：130MHz
- Charge Injection：-16pC
- Channel Capacitance (CS(off), CD(off))：4pF, 31pF
- Current - Leakage (IS(off)) (Max)：1nA
- Crosstalk：-95dB @ 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：1
- Grade：-
- Qualification：-
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Overview
The TMUX7308FRRPR is a single-channel, 8:1 analog multiplexer manufactured by Texas Instruments. It features integrated fault protection capable of withstanding ±60 V overvoltage on source pins relative to ground in both powered and unpowered states. The device supports dual supplies from ±5 V to ±22 V or a single supply from 8 V to 44 V. It operates with 1.8-V logic inputs and includes internal pull-down resistors for fail-safe operation. The component is housed in a 16-pin WQFN package (RRP) measuring 4 mm x 4 mm.
Feature Summary
- Integrated fault protection tolerates up to ±60 V overvoltage on source pins relative to ground during both active and powered-off conditions.
- Supports wide supply ranges including dual supplies (±5 V to ±22 V) and single supplies (8 V to 44 V).
- Compatible with 1.8-V logic levels and features fail-safe logic with integrated pull-down resistors on control pins.
Applications
- Factory automation and control systems
- Programmable logic controllers (PLC)
- Analog input modules
- Semiconductor test equipment
- Data acquisition systems (DAQ)
Procurement Notes
Verify the specific ordering suffix 'RRPR' corresponds to the WQFN-16 package and reel packaging configuration. Confirm that the device revision matches the required production data specifications. Ensure compatibility with the target PCB footprint dimensions of 4 mm x 4 mm before finalizing procurement orders.
Selection Notes
Select this component when high robustness against voltage transients is required alongside standard multiplexing functions. It is suitable for environments where power sequencing cannot be strictly controlled due to its powered-off fault tolerance. Consider the WQFN package size if board space is limited compared to the TSSOP alternative.
Part Context
This part belongs to the TMUX730xF family, which also includes the TMUX7309F differential multiplexer. Both devices share similar fault protection and logic capabilities but differ in channel configuration. The TMUX7308F provides an 8:1 single-ended configuration, whereas the TMUX7309F offers two 4:1 channels.
Replacement Considerations
The TMUX7308FPWRG4 is a verified substitute offering identical electrical characteristics and functionality. It utilizes the same 16-pin TSSOP package instead of the WQFN form factor found in the RRP variant. Verify pinout compatibility and thermal performance differences between the TSSOP and WQFN packages during substitution.
