MAX4645EUA

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4645EUA is a single-pole, single-throw (SPST) analog switch manufactured by Analog Devices Inc./Maxim Integrated. It operates from a +1.8V to +5.5V single supply and features a typical on-resistance of 2.5Ω at +5V. The device handles Rail-to-Rail analog signals with an off-leakage current of 0.25nA maximum at +25°C. Switching speeds include a turn-on time of 12ns and a turn-off time of 8ns. It is housed in an 8-pin µMAX package and supports an operating temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Rail-to-Rail output capability for processing analog signals within the supply voltage range
• Low on-resistance flatness ensuring consistent signal integrity across the specified range
• TTL/CMOS logic compatibility for straightforward interface integration

Analog Switches, Multiplexers, Demultiplexers Applications

• Battery-powered systems requiring low-voltage operation
• Audio and video signal routing applications
• Low-voltage data-acquisition systems
• Sample-and-hold circuits
• Relay replacement in automated test equipment

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the component authenticity through official manufacturer channels or authorized distributors. Confirm that the specific ordering suffix matches the required package type and temperature range specifications. Ensure compliance with RoHS directives if applicable to your manufacturing standards. Cross-reference the datasheet revision to confirm pinout and electrical characteristics align with your design requirements before finalizing procurement.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a single-channel SPST switch is needed for low-voltage applications. Consider the 2.5Ω on-resistance and 12ns switching speed for high-speed signal routing. Verify that the +1.8V minimum supply voltage meets your system's power constraints. Ensure the 8-pin µMAX package fits your PCB layout constraints and thermal management requirements.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX4645EUA belongs to the MAX4645/MAX4646 family of fast, low-voltage CMOS analog switches. This series is designed to replace mechanical relays in space-constrained designs. The MAX4645 variant specifically provides a normally open configuration, distinguishing it from the normally closed MAX4646. Both share identical electrical characteristics and packaging options.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct replacements include the MAX4646EUA for normally closed configurations. Other compatible parts in the same family may offer different channel counts or package types. Verify pin compatibility and electrical parameters before substitution.