TMUX121NKGR

• 2:1 SPDT Analog switch, Single circuit, 1.8V-Compatible Logic Control
• 3G Hz -3dB bandwidth, 3.9 Ohm on-State Resistance
• 3.0V to 3.6V Supply Range
• 10-Pin UQFN package, 1.8mm X 1.4mm, 450um Thickness
• -40C to +125C Operating range, 125C Maximum Junction Temperature
• RoHS compliant, Production/Active Lifecycle Status

The TMUX121NKGR is a Texas Instruments 2:1 SPDT analog switch with 1.8V-compatible logic control, supplied in a 10-pin UQFN package measuring 1.8mm x 1.4mm. It provides 3G Hz of -3dB bandwidth with 3.9 ohms of on-state resistance, operates from a 3.0V to 3.6V supply, and is rated -40C to +125C with a 125C maximum junction temperature. An analog switch routes signals bidirectionally without re-timing or re-driving them, so it preserves the original waveform rather than regenerating it. Texas Instruments lists the TMUX121NKGR at Production/Active lifecycle status and RoHS compliant.

Wideband SPDT analog switches are used to route high-speed signals between two paths on a shared pin: multiplexing a debug or programming interface onto a production connector, switching antenna or clock paths, selecting between two sensor or video sources, and steering differential serial links on test fixtures and docking hardware. The 3G Hz bandwidth and low on-resistance are what allow the switch to sit in a high-speed path without becoming the bandwidth limit. The 1.8V-compatible control input lets a modern low-voltage SoC drive the switch directly. Buyers are consumer and embedded hardware designers, automotive and industrial module suppliers, and test-equipment manufacturers.