4-circuit SPDT analog switch, 10 Ohm Ron, 300 MHz bandwidth
The Texas Instruments TS3A5018DGVR is a 4-circuit SPDT analog switch with a 2:1 multiplexer/demultiplexer topology per channel, housed in a 16-TVSOP package. Each switch presents a maximum on-resistance of 10 Ohm with channel-to-channel matching of 300 mOhm, making it suitable for precision analog signal routing where consistent impedance across channels matters. The -3 dB bandwidth of 300 MHz and crosstalk of -48 dB at 10 MHz mean this part can handle high-speed analog or digital signals up to video rates without significant channel bleed.
Supply rails, switching speed, and signal integrity
Maximum turn-on time is 8 ns and turn-off time is 6.5 ns, fast enough for multiplexing data streams at tens of megahertz without introducing timing skew. Charge injection is rated at 2 pC typical, which keeps glitch energy low when switching between channels in sample-and-hold or DAC output multiplexing applications. Maximum off-state leakage current is 100 nA, and channel capacitance is 4.5 pF (off) and 9 pF (off on the drain side), both of which help maintain signal integrity at higher frequencies.