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Texas Instruments SN74LVC1G66DCKJ — Analog & Data Acquisition

SN74LVC1G66DCKJ Texas Instruments Analog Switch, 300MHz

MPNSN74LVC1G66DCKJ
Obsolete

Texas Instruments SN74LVC1G66DCKJ, SPST-NO analog switch, 300 MHz -3dB bandwidth, 10 Ohm max on-resistance, 1.65 V to 5.5 V supply, SC-70-5 package, -40°C to 85°C.

Texas Instruments SN74LVC1G66DCKJ datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

SN74LVC1G66DCKJ 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

Single-pole analog switch in SC-70-5

The Texas Instruments SN74LVC1G66DCKJ is a single-pole single-throw (SPST) normally open analog switch in a 5-pin SC-70-5 package. It switches signals up to 300 MHz bandwidth with a 10 Ohm max on-state resistance, making it suitable for audio, video, and low-speed RF routing in portable and industrial equipment.

300 MHz bandwidth and 4.2 ns switching — signal-path fit

The -3 dB bandwidth of 300 MHz covers composite video, baseband analog signals, and digital signals up to several hundred Mbps. Maximum turn-on time is 4.2 ns and turn-off time is 5 ns, so the switch can handle fast multiplexing without distorting the signal edge.

The 10 Ohm on-resistance is specified across the full supply range, so the insertion loss stays consistent regardless of the rail voltage.

Industrial temperature grade and SC-70-5 footprint

The SC-70-5 (SOT-353) package occupies about 2.0 mm × 2.1 mm on the board, fitting dense mixed-signal layouts. Mounting is surface-mount only.

Frequently asked questions

What is the replacement for SN74LVC1G66DCKJ?

Texas Instruments has not published an official successor order code for the SN74LVC1G66DCKJ. For a pin-compatible alternative within the same LVC family, consider the SN74LVC1G66DCKR (same SC-70-5 package, same electrical specs, active lifecycle). Confirm the BOM position and supply voltage before substituting.