Three SPDT switches in one 16-SOIC
The Maxim Integrated MAX4583LESE+ packs three independent SPDT (single-pole double-throw) analog switches into a 16-SOIC package. Each switch routes a common terminal to one of two outputs, controlled by a logic-level input. The 80 Ohm maximum on-state resistance is the key spec for signal attenuation — keep it in mind when switching low-level analog or audio paths where series resistance eats into your dynamic range. Crosstalk between channels sits at -96 dB at 1 MHz, which is clean enough for multiplexing multiple sensor inputs or audio signals on the same board without bleed-through.
Supply flexibility and leakage
Single-supply operation from 2V to 12V means this part works on 3.3V or 5V rails without an extra regulator — handy when you are pulling from an existing logic supply. Off-state leakage is 2 nA max, and charge injection is 0.5 pC, so it will not upset a sample-and-hold or a precision reference when the switch toggles. Channel-to-channel matching of 1 Ohm keeps the resistance consistent across all three switches, which matters if you are routing gain-setting resistors or trimming a filter.
Switching speed and capacitance
Turn-on time is 200 ns max, turn-off is 100 ns max — fast enough for audio muxing, data acquisition front-ends, or relay-replacement in low-frequency switching. Channel capacitance (4 pF off-state on the source side, 6 pF on the drain side) is a factor in high-impedance circuits: it sets the settling time when you switch into a high-Z amplifier input. The 16-SOIC footprint is a standard surface-mount package, easy to route on a two-layer board.
Where it fits
Industrial temperature range (-40°C to 85°C) lets this switch sit in factory automation panels, outdoor telecom enclosures, or engine-bay-adjacent electronics without derating. Typical applications include audio signal routing, sensor multiplexing, data-acquisition channel selection, and analog mux/demux in test equipment. The SPDT topology gives you one input to two outputs — useful for selecting between calibration and measurement paths, or routing a single ADC input across multiple signal chains.
Sourcing and lifecycle
The MAX4583LESE+ has an active lifecycle status and is ROHS3 compliant. For production BOMs, this part is qualified for new designs and ongoing builds. Sourced and quoted to order through independent distribution; availability and current pricing confirmed at quote time against an RFQ.