MAX4663EWE

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4663EWE is a quad single-pole single-throw (SPST) CMOS analog switch housed in a 16-pin Wide SOIC package. It operates from a single +4.5V to +36V supply or dual ±4.5V to ±20V supplies, featuring TTL/CMOS-compatible logic inputs via a separate VL pin. The device provides a maximum on-resistance of 2.5Ω with guaranteed matching and flatness of 0.5Ω over the signal range. It supports rail-to-rail analog signals, offers >2kV ESD protection, and includes guaranteed break-before-make switching. Operating temperatures range from -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Guaranteed break-before-make switching prevents signal shorting during transitions
• Rail-to-rail signal handling capability across the full supply voltage range
• Low on-resistance with tight channel-to-channel matching for low-distortion performance
• TTL/CMOS-compatible control inputs ensure logic compatibility across various supply voltages

Analog Switches, Multiplexers, Demultiplexers Applications

• Reed relay replacement in automated test equipment
• Audio-signal routing and PBX/PABX systems
• Sample-and-hold circuits and data acquisition systems
• ADC systems and communication equipment

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'EWE' corresponds to the industrial temperature range (-40°C to +85°C) and the 16-pin Wide SOIC package configuration. Confirm that the 'MAX4663' designation matches the required mix of two normally open and two normally closed switches. Ensure the application design accounts for the separate logic supply pin requirements for proper interface compatibility.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when break-before-make timing is critical to avoid signal overlap between channels. Choose this part over the MAX4661 or MAX4662 if the specific combination of two NO and two NC switches is required. Verify that the 2.5Ω on-resistance meets the system's voltage drop constraints and that the 16-pin Wide SOIC footprint fits the PCB layout.

Analog Switches, Multiplexers, Demultiplexers Part Context

This device belongs to the MAX4661/MAX4662/MAX4663 family of quad SPST CMOS analog switches. While all three variants share identical electrical characteristics regarding resistance and speed, they differ in switch configuration: MAX4661 is fully normally closed, MAX4662 is fully normally open, and MAX4663 combines both types with guaranteed break-before-make functionality.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct functional substitutes within the same family include MAX4663CWE (commercial temperature range) and MAX4663EPE (Plastic DIP package). For applications requiring different switch configurations, MAX4661EWE or MAX4662EWE may be considered if the specific NO/NC mix is not mandatory.

Analog Switches, Multiplexers, Demultiplexers FAQ

What distinguishes the MAX4663 from the MAX4661 and MAX4662?

The MAX4663 contains two normally open and two normally closed switches, whereas the MAX4661 has four normally closed switches and the MAX4662 has four normally open switches. Additionally, the MAX4663 guarantees break-before-make switching.

How does the MAX4663 handle logic input compatibility?

It features a separate logic supply pin (VL) that guarantees TTL/CMOS logic compatibility when operating across the entire specified analog supply voltage range.

What is the significance of the 'break-before-make' feature?

This feature ensures that one switch opens completely before another closes, preventing momentary short circuits between outputs during switching transitions, which is critical in multiplexing applications.