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Product Detailed Parameters
- Description：IC SW SPST-NCX2 900MOHM 8VSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Switch Circuit：SPST - NC
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：900mOhm
- Channel-to-Channel Matching (ΔRon)：30mOhm
- Voltage - Supply, Single (V+)：1.6V ~ 3.6V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：14ns, 9ns
- -3db Bandwidth：125MHz
- Charge Injection：3pC
- Channel Capacitance (CS(off), CD(off))：23pF, 20pF
- Current - Leakage (IS(off)) (Max)：2nA
- Crosstalk：-95dB @ 1MHz
- Operating Temperature：-40°C ~ 85°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：2
- Grade：-
- Qualification：-
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Overview
The TS3A4742DGKR is a dual single-pole single-throw (SPST) analog switch manufactured by Texas Instruments. It operates on a single supply voltage ranging from 1.65 V to 3.6 V. The device features a maximum on-resistance of 0.9 ohms and supports continuous DC current up to 100 mA. Key electrical parameters include a maximum propagation delay of 14 ns and an off-isolation of 50 dB at 1 MHz. The component is housed in an 8-pin VSSOP package with dimensions of 3 mm by 3 mm.
Feature Summary
- Dual-channel SPST configuration for signal routing
- Low on-resistance for minimal signal attenuation
- Single-supply operation compatible with low-voltage systems
Applications
- Audio and video signal switching
- Portable consumer electronics
- Mobile phone peripheral interfacing
Procurement Notes
Verify the specific suffix DGKR corresponds to the VSSOP-8 package and reel packaging format. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets before integration into production designs.
Selection Notes
Select this component when dual independent analog switches are required within a compact footprint. Ensure the operating voltage remains within the 1.65 V to 3.6 V range. Consider thermal dissipation requirements if handling currents near the 100 mA limit continuously.
Part Context
This part belongs to the TS3A474x family of low-voltage analog switches. It shares functional similarities with the TS3A4741 but differs in pinout or internal configuration. The series is designed for space-constrained applications requiring high bandwidth and low distortion.
Replacement Considerations
Direct substitutes include the TS3A4741DCNR and TS3A4742DCNR. Verify pin compatibility and package dimensions before substitution. Alternative packages such as SOT-23-8 may require adapter solutions.
