MAX4644EUA

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4644EUA+ is a high-speed, low-voltage analog switch IC manufactured by Analog Devices Inc./Maxim Integrated. It features a single SPDT (Single Pole Double Throw) configuration housed in an 8-uMAX package. The device operates on a single supply voltage ranging from 1.8 V to 5.5 V. Key electrical parameters include a maximum on-resistance of 4 Ohms, a maximum power dissipation of 362 mW, and a maximum supply current of 1 uA. Switching performance is characterized by a maximum turn-on time of 15 ns and a maximum turn-off time of 5 ns. The component supports a DC switch current of 50 mA and functions within an operating temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• High-speed switching capability with nanosecond-level transition times for signal integrity.
• Low-voltage operation suitable for portable and battery-powered applications.
• Compact surface-mount packaging designed for space-constrained circuit boards.

Analog Switches, Multiplexers, Demultiplexers Applications

• Portable instrumentation signal routing
• Battery-powered measurement systems
• Communication equipment signal switching

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix designation when ordering, as it may indicate environmental compliance or tape-and-reel variations. Confirm RoHS status and lead times through authorized distributors, as availability fluctuates. Ensure the selected variant matches the required package type and thermal specifications for the target application environment.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component for designs requiring fast switching speeds with minimal on-resistance at low supply voltages. Consider the 8-uMAX package dimensions for PCB layout constraints. Evaluate the 50 mA DC switch current limit against load requirements to ensure reliable operation without excessive heat generation or voltage drop across the switch.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX4644 belongs to the Maxim Integrated family of CMOS analog switches. It is part of a series that includes variants like the MAX4641, MAX4642, and MAX4643, which differ in channel count and configuration. This specific model provides a single SPDT path, distinguishing it from multiplexer or demultiplexer configurations found in other members of the same product line.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct functional substitutes within the same family include the MAX4641, MAX4642, and MAX4643, provided pin compatibility and configuration requirements are met. Verify package equivalence between uMAX and similar small-outline packages before substitution.