Dual SP4T analog multiplexer in 16-SOIC
The MAX4582ESE+T is a dual SP4T (single-pole, four-throw) analog multiplexer from Analog Devices, integrating two independent 4:1 multiplexer/demultiplexer circuits in a single 16-SOIC package. Each switch conducts bidirectionally with a maximum on-resistance of 80 Ohm and channel-to-channel matching of 1 Ohm, making it suitable for precision analog signal routing where consistent insertion loss across channels matters.
Supply flexibility and signal integrity
Crosstalk is rated at -96dB at 1MHz, meaning signal bleed between channels is low enough for audio-frequency multiplexing and moderate-speed data acquisition. Charge injection of 0.5pC minimizes voltage glitches on the analog bus when switching channels, critical for sample-and-hold or precision DAC output routing. Switching times are 200ns (turn-on) and 100ns (turn-off) maximum, fast enough for scanning multiple sensor channels in a control loop without missing samples.
Leakage, capacitance, and temperature envelope
Maximum off-leakage current is 1nA, preserving signal accuracy in high-impedance circuits where even nanoamp-level leakage would shift the measurement. Channel capacitance is 4pF (source off) and 10pF (drain off), which together with the on-resistance sets the bandwidth ceiling — suitable for signals up to several MHz before attenuation becomes significant.
Sourcing and compliance
The part is ROHS3 compliant, meeting the latest EU restriction-of-hazardous-substances directive for lead-free assembly. Available in Tape & Reel (TR) or Cut Tape (CT) packaging — the TR option feeds directly into automated pick-and-place lines without re-reeling.