MAX4643EUA+TG24

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4643EUA+TG24 is a monolithic dual single-pole/single-throw (SPST) CMOS analog switch from the MAX4641/MAX4642/MAX4643 family. It operates on a single supply ranging from +1.8V to +5.5V and features one normally open (NO) channel and one normally closed (NC) channel. The device provides a maximum on-resistance of 4Ω at +5V, with guaranteed on-resistance flatness of 1Ω and channel matching of 0.6Ω. Switching times are fast, with typical turn-on and turn-off times under 20ns. Quiescent power consumption is less than 0.01µW, and leakage currents remain below 0.35nA across the full operating temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Single-supply operation from +1.8V to +5.5V with rail-to-rail analog signal handling
• Low on-resistance with guaranteed flatness and channel matching for signal integrity
• Ultra-low quiescent power consumption suitable for battery-operated equipment
• Fast switching speeds with minimal charge injection and low off-capacitance

Analog Switches, Multiplexers, Demultiplexers Applications

• Battery-operated equipment
• Audio and video signal routing
• Low-voltage data-acquisition systems
• Sample-and-hold circuits
• Communications circuits

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the component against official Maxim Integrated datasheets to confirm electrical parameters and package specifications. Ensure compatibility with system voltage requirements and thermal constraints. Check for RoHS compliance status as indicated in manufacturer documentation. Confirm that the specific suffix corresponds to the desired reel packaging configuration before finalizing procurement orders.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when designing low-voltage systems requiring precise analog signal switching between normally open and normally closed states. The low on-resistance and high isolation make it suitable for maintaining signal fidelity in sensitive applications. Consider the small 8-pin µMAX package for space-constrained designs. Verify logic level compatibility if operating at supply voltages other than +5V.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX4641/MAX4642/MAX4643 series of high-speed, low-voltage analog switches. While the MAX4641 offers two normally open channels and the MAX4642 provides two normally closed channels, the MAX4643 uniquely combines one NO and one NC switch within a single package. This configuration allows for versatile signal path management in mixed-signal environments without requiring multiple components.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct functional substitutes within the same package include the MAX4641EUA and MAX4642EUA, though their channel configurations differ. For identical NO/NC functionality, verify availability of other MAX4643 variants such as the EGA QFN package versions if lead-free or different footprint options are required.