MAX4731ETA+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4731ETA+ is a low-voltage, dual single-pole/single-throw (SPST) analog switch manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +2V to +11V supply and handles rail-to-rail analog signals. The device features an on-resistance of 50Ω maximum at +3V and 25Ω maximum at +5V, with channel matching under 3.5Ω. It exhibits less than 0.1nA leakage current and consumes approximately 0.5nW of quiescent power. The component is housed in an 8-pin TDFN package with an exposed pad, suitable for space-constrained designs.

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 against official manufacturer documentation to confirm package type and temperature range. Ensure compatibility with the required PCB footprint for the 8-pin TDFN configuration. Cross-reference the part number with authorized distributors to validate authenticity and traceability before procurement.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when designing low-power analog switching circuits requiring rail-to-rail signal integrity. The dual SPST configuration supports independent control of two channels. Verify that the operating supply voltage falls within the +2V to +11V range and that the load conditions do not exceed the continuous current ratings specified in the datasheet.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the MAX4731/MAX4732/MAX4733 family of 50Ω dual SPST analog switches. The MAX4731 variant specifically provides two normally open switches. Other family members include the MAX4732 with two normally closed switches and the MAX4733 with one normally open and one normally closed switch. All variants share similar electrical characteristics and packaging options.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct functional substitutes within the same family include the MAX4732ETA+ and MAX4733ETA+. These parts share identical pinouts and electrical specifications but differ in switch configuration (normally closed or mixed). Ensure the application logic aligns with the specific NO/NC requirements of the replacement part.