MAX4743EUA+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4743EUA+ is a dual single-pole/single-throw (SPST) analog switch manufactured by Analog Devices Inc. under the Maxim Integrated brand, housed in an 8-pin µMAX package. It operates on a single supply voltage ranging from +1.6V to +3.6V. At a +3V supply, it features a maximum on-resistance of 0.8Ω with a maximum flatness of 0.18Ω and a maximum channel-to-channel matching of 0.08Ω. The device supports continuous current handling up to 150mA. Switching speeds include a maximum turn-on time of 24ns and a maximum turn-off time of 16ns at +3V. The MAX4743 variant specifically incorporates break-before-make switching logic.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Low on-resistance performance with high current handling capacity for efficient signal routing
• Rail-to-rail analog signal transmission capability within the supply voltage range
• Break-before-make switching configuration to prevent signal shorting during transitions

Analog Switches, Multiplexers, Demultiplexers Applications

• Power routing in portable electronic devices
• Audio and video signal routing systems
• Battery powered systems requiring low quiescent power consumption
• Low-voltage data-acquisition circuits
• Communications equipment including cellular phones and modems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific ordering suffix matches the required package type and temperature range specifications. Ensure compliance with RoHS directives as indicated in official documentation before integration into production workflows.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when designing low-voltage single-supply systems requiring precise analog signal switching. The MAX4743 variant is appropriate where break-before-make timing is necessary to avoid bus contention. Consider the 0.8Ω on-resistance at +3V for applications demanding minimal signal attenuation and high linearity.

Analog Switches, Multiplexers, Demultiplexers Part Context

This device belongs to the MAX4741/MAX4742/MAX4743 family of low-voltage analog switches. While the MAX4741 offers two normally open switches and the MAX4742 provides two normally closed switches, the MAX4743 combines one normally open and one normally closed switch. All variants share identical electrical characteristics regarding resistance, speed, and power consumption.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct functional substitutes within the same series include the MAX4741EUA+ and MAX4742EUA+. These parts share the same package and electrical parameters but differ in switch configuration (NO vs NC). Verify that the application circuitry accommodates the specific NO/NC topology of the replacement part.