MAX4661CWE+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4661CWE+ is a quad single-pole single-throw (SPST) CMOS analog switch housed in a 16-pin Wide SOIC package. It features a maximum on-resistance of 2.5Ω with guaranteed matching and flatness of 0.5Ω over the signal range. The device supports rail-to-rail analog signals, operates from a single +4.5V to +36V supply or dual ±4.5V to ±20V supplies, and includes TTL/CMOS-compatible logic inputs. It offers low off-leakage current of 5nA max at +85°C and provides greater than 2kV ESD protection.

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 high-fidelity switching
• TTL/CMOS-compatible control inputs ensuring logic compatibility across supply ranges
• High ESD protection exceeding 2kV per Method 3015.7

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 avionics applications

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the component against official Analog Devices documentation to confirm pinout integrity and electrical specifications. Ensure the Wide SOIC package matches the design footprint requirements. Cross-reference the ordering suffix to validate the commercial temperature range and lead finish. Confirm RoHS compliance status through the manufacturer's latest certification records before integration.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component for applications requiring low distortion and precise resistance matching between channels. The wide supply voltage range allows flexibility in system power architecture. Consider the thermal dissipation limits when designing for high ambient temperatures. Verify that the logic input levels align with the system's control voltage standards for reliable switching operation.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX4661/MAX4662/MAX4663 family of quad analog switches. While the MAX4661 features four normally closed switches, the MAX4662 offers four normally open switches, and the MAX4663 combines two of each with break-before-make timing. All variants share similar electrical characteristics and packaging options within the same series.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct functional substitutes include the MAX4662CWE+ and MAX4663CWE+. Note that the MAX4662 has normally open switches instead of normally closed, and the MAX4663 includes mixed NC/NO configurations with specific timing guarantees. Verify logic polarity and switch state requirements before substitution.