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Product Detailed Parameters
- Description：IC SWITCH SPDT X 4 4.5OHM 16UQFN
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SPDT
- Multiplexer/Demultiplexer Circuit：2:01
- On-State Resistance (Max)：4.5Ohm
- Channel-to-Channel Matching (ΔRon)：70mOhm
- Voltage - Supply, Single (V+)：-
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：35µs, 95ns
- -3db Bandwidth：2GHz
- Charge Injection：3.5pC
- Channel Capacitance (CS(off), CD(off))：3.5pF, 3.5pF
- Current - Leakage (IS(off)) (Max)：100nA
- Crosstalk：-90dB @ 100kHz
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-UFQFN
- Supplier Device Package：16-UQFN (2.6x1.8)
- Number of Circuits：4
- Grade：-
- Qualification：-
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Overview
The TMUX1574RSVR is a low-capacitance, 2:1 (SPDT) four-channel analog switch manufactured by Texas Instruments. It operates on a single supply voltage ranging from 1.5 V to 5.5 V and supports 1.8 V logic control inputs. The device features powered-off protection, allowing signal integrity maintenance even when power is removed. Key electrical parameters include a maximum on-resistance of 4.5 Ohms, a -3dB bandwidth of 2 GHz, and a charge injection of 3.5 pC. Off-state leakage current is limited to 100 nA, with channel-to-channel matching at 70 mOhm. Switching times are specified at 35 µs for turn-on and 95 ns for turn-off. It is housed in a 16-UQFN package measuring 2.6x1.8 mm.
Feature Summary
- Integrated powered-off protection prevents high-impedance states during power loss.
- Low capacitance design ensures minimal signal distortion for high-frequency applications.
- Compatible with 1.8 V logic levels for direct interface with modern digital controllers.
Applications
- Portable medical equipment requiring signal routing under varying power conditions.
- Automotive infotainment systems utilizing low-voltage logic interfaces.
- Industrial process control modules needing reliable SPDT switching.
Procurement Notes
Verify the specific suffix 'RSVR' against the manufacturer's official datasheet to confirm the 16-UQFN package type and reel packaging specifications. Ensure that the 1.8 V logic compatibility aligns with your system's control voltage requirements before finalizing procurement. Cross-reference the RoHS compliance status with current environmental regulations applicable to your region.
Selection Notes
Select this component when a four-channel SPDT configuration is required within a compact footprint. The 2 GHz bandwidth makes it suitable for higher frequency signal paths compared to standard switches. Consider the 4.5 Ohm on-resistance limit for applications where signal attenuation must be minimized. Verify that the 1.5 V minimum operating voltage matches your system's power rail availability.
Part Context
This part belongs to the TMUX1574 family of low-capacitance analog switches. The family emphasizes powered-off protection and low signal distortion. The RS variant specifically denotes the UQFN package format. Other members in the series may offer different channel counts or pin configurations while maintaining similar electrical characteristics.
Replacement Considerations
Direct substitutes within the same family include parts with identical pinouts but different suffixes indicating package variations. Verify functional equivalence regarding the 2:1 SPDT configuration and 1.8 V logic support. Check if alternative packages meet the spatial constraints of the existing design without altering the circuit layout.
