MAX4661EWE+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4661EWE+ is a quad single-pole single-throw (SPST) CMOS analog switch housed in a 16-pin Wide SO package. It features a maximum on-resistance of 2.5Ω with guaranteed matching and flatness of 0.5Ω across the signal range. The device supports rail-to-rail analog signals and operates from a single +4.5V to +36V supply or dual ±4.5V to ±20V supplies. It includes a separate logic supply pin for TTL/CMOS compatibility, offers greater than 2kV ESD protection, and functions within an industrial temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Low on-resistance of 2.5Ω max with guaranteed channel matching and flatness
• Rail-to-Rail signal handling capability for low-distortion applications
• TTL/CMOS-compatible control inputs via a separate logic supply pin
• High ESD protection rating exceeding 2kV per Method 3015.7

Analog Switches, Multiplexers, Demultiplexers Applications

• Reed relay replacement in automatic test equipment
• Avionics and communication systems
• ADC systems and data acquisition systems
• Sample-and-hold circuits and audio-signal routing

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the component against the official Analog Devices datasheet specifications before integration. Confirm that the 16-Wide SO package dimensions match the target PCB footprint. Ensure power supply sequencing adheres to the absolute maximum ratings to prevent damage. Check for RoHS compliance status as indicated in the ordering information.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this part when low distortion and high channel matching are required. The MAX4661 provides four normally closed switches, distinguishing it from the MAX4662 (normally open) and MAX4663 (mixed). Ensure the application voltage stays within the specified single or dual supply ranges. Consider the thermal derating characteristics if operating near the upper temperature limit.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the MAX4661/MAX4662/MAX4663 family of quad analog switches manufactured by Analog Devices/Maxim Integrated. It serves as a solid-state alternative to mechanical relays, offering lower power consumption and higher reliability. The 'E' suffix denotes the extended industrial temperature range, while 'WE' specifies the 16-pin Wide SOIC package type.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct functional substitutes within the same package include the MAX4662EWE+ (four NO switches) and MAX4663EWE+ (two NC/two NO switches with break-before-make). Other families like the MAX4600 series offer different on-resistance values but may require verification of pinout and electrical parameter compatibility.