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Product Detailed Parameters
- Description：IC SW SPST-NOX2 900MOHM SOT23-8
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SPST - NO
- 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：SOT-23-8
- Supplier Device Package：SOT-23-8
- Number of Circuits：2
- Grade：-
- Qualification：-
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Overview
The TS3A4741DCNR is a low ON-state resistance, low-voltage, dual single-pole/single-throw (SPST) analog switch manufactured by Texas Instruments. It operates from a single 1.6-V to 3.6-V supply and features two normally open switches. The device handles rail-to-rail analog signals with a maximum on-resistance of 0.9 Ω at a 3-V supply and 1.5 Ω at a 1.8-V supply. It exhibits fast switching speeds with turn-on time of 14 ns and turn-off time of 9 ns. The digital logic input is 1.8-V CMOS compatible when using a single 3-V supply. It is housed in an 8-pin SOT-23 package.
Feature Summary
- Low ON-state resistance for efficient signal transmission
- Fast switching capability for high-speed applications
- Single-supply operation with low voltage compatibility
- High current-handling capacity for robust performance
Applications
- Power routing in battery-powered systems
- Audio and video signal routing
- Low-voltage data-acquisition systems
- PCMCIA cards and cellular phones
- Modems and hard drives
Procurement Notes
Verify the specific suffix DCNR corresponds to the SOT-23 package and reel packaging configuration as documented in the official Texas Instruments datasheet. Confirm RoHS compliance status and ensure the component meets the required operating temperature range of -40°C to 85°C for the intended application environment before procurement.
Selection Notes
Select the TS3A4741DCNR when a dual SPST analog switch with low on-resistance and single-supply operation is required. Ensure the system voltage falls within the 1.6-V to 3.6-V range. Consider the SOT-23 package size constraints and verify that the 1.8-V CMOS logic compatibility aligns with the control interface requirements of the design.
Part Context
The TS3A4741DCNR belongs to the TS3A474x family of low-voltage analog switches from Texas Instruments. This family includes variants like the TS3A4742, which features normally closed switches instead of normally open ones. Both devices share similar electrical characteristics and are designed for portable and battery-powered applications requiring efficient signal routing.
Replacement Considerations
The TS3A4742DCNR is a direct functional substitute within the same package, differing only in having normally closed switches instead of normally open. Other Texas Instruments parts in the TS3A47xx series may offer different channel counts or package options but require verification of pinout and electrical specifications.
