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Texas Instruments SN74LVC1G66DCKRG4 — Analog & Data Acquisition

SN74LVC1G66DCKRG4 TI analog switch, SPST-NO, 10 Ohm, 300 MHz

MPNSN74LVC1G66DCKRG4
End of Life

Texas Instruments 74LVC1G66 series, SN74LVC1G66DCKRG4, Analog Switch IC, 1 Channel SPST-NO, 10Ohm, 300MHz, 1.65V~5.5V, -40°C~85°C, Surface Mount, SC-70-5.

Texas Instruments SN74LVC1G66DCKRG4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

SN74LVC1G66DCKRG4 specifications
ParameterValue
MountingSurface Mount
Voltage - supply, single (V+)1.65V ~ 5.5V
Current - leakage (IS(off))100nA
Operating temperature-40°C~85°C(TA)
-3db bandwidth300MHz
PackageTape & Reel (TR)
Case5-TSSOP, SC-70-5, SOT-353
Switch circuitSPST - NO
Number of circuits1
On-State resistance10Ohm
Switch time (Ton, toff)4.2ns, 5ns
Multiplexer (Demultiplexer circuit)1:1
Channel capacitance (CS(off), CD(off))6pF

Product details

The Texas Instruments SN74LVC1G66DCKRG4 is a single-pole, single-throw (SPST) normally-open analog switch in a tiny SC-70-5 package.

On-resistance and bandwidth — what they mean for signal integrity

The 300 MHz -3 dB bandwidth covers baseband video, high-speed logic, and RF envelope switching without significant roll-off. Switch timing of 4.2 ns turn-on and 5 ns turn-off max supports fast multiplexing in data-acquisition front-ends and clock gating applications where the switch must settle before the next sample.

Frequently asked questions

Can SN74LVC1G66DCKRG4 be used for audio switching?

Yes. The 10 Ohm on-resistance and 300 MHz bandwidth introduce negligible attenuation and distortion in line-level audio paths (typically 2 Vrms or below). The 6 pF off-channel capacitance keeps high-frequency roll-off above the audio band.