MAX4731EUA+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4731EUA+ is a dual single-pole/single-throw (SPST) analog switch manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +2.0V to +11V supply and handles rail-to-rail analog signals. The device features low leakage current of 0.1nA typical at +25°C and consumes less than 0.5nW quiescent power. At +5V, the on-resistance is guaranteed at 25Ω maximum with 3Ω matching between channels. At +3V, the on-resistance is 50Ω maximum with 3.5Ω channel matching. The component is housed in an 8-pin µMAX package and supports an operating temperature range from -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Rail-to-rail signal handling capability across the entire supply voltage range
• Extremely low power consumption suitable for battery-powered applications
• TTL/CMOS logic compatible inputs for direct interfacing
• High off-isolation and low crosstalk performance

Analog Switches, Multiplexers, Demultiplexers Applications

• Battery-powered systems
• Audio/video-signal routing
• Low-voltage data-acquisition systems
• Cell phones and PDAs
• Communications circuits

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix 'EUA+' corresponds to the 8-pin µMAX package variant when sourcing. Confirm that the procurement documentation explicitly lists the -40°C to +85°C industrial temperature range. Ensure the component source matches the manufacturer designation to avoid counterfeit parts.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this part for designs requiring dual SPST switching with minimal board space and ultra-low standby power. The +2V to +11V supply range accommodates various logic levels. Verify that the 25Ω or 50Ω on-resistance limits meet the signal integrity requirements of the specific application circuit.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the MAX4731/MAX4732/MAX4733 family of low-voltage analog switches. While the MAX4731 offers two normally open switches, the family also includes variants with normally closed configurations. The EUA+ designation specifically identifies the industrial temperature grade and the 8-pin µMAX surface-mount package type.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct functional substitutes within the same series include the MAX4732EUA+ and MAX4733EUA+. These share identical pinouts and electrical characteristics but differ in switch configuration.