8:1 multiplexer in 16-TSSOP
The MAX308EUE+T from Analog Devices is a single 8:1 multiplexer/demultiplexer in a 16-TSSOP package, designed for precision analog signal routing where low on-resistance and fast switching are required. On-resistance is 100Ohm max with channel-to-channel matching of 1.5Ohm, ensuring consistent signal attenuation across all eight channels.
Supply range and switching speed
Operates from a single supply of 5V to 30V or dual supplies of ±5V to ±20V, giving flexibility for both single-rail and split-rail analog systems. Switching times (ton and toff) are both 150ns max, suitable for high-speed multiplexing in data acquisition and test equipment. Charge injection is 2pC, minimizing glitch when switching between channels in sample-and-hold or ADC front-end circuits.
Signal integrity and leakage
Crosstalk is -92dB at 100kHz, providing good isolation between channels for precision analog multiplexing. Off-channel leakage current is 750pA max, and channel capacitance is 3pF (off) and 26pF (drain off), preserving signal integrity in high-impedance applications.
