MAX4678EUE+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4678EUE+ is a quad single-pole single-throw (SPST) CMOS analog switch featuring four normally open channels. It operates from a single +2.7V to +11V supply or dual ±2.7V to ±5.5V supplies, with a separate logic supply input ranging from +2.7V to V+. The device exhibits a maximum on-resistance of 1.6Ω at ±5V and 3.5Ω over the full temperature range, with channel matching of 0.3Ω max and flatness of 0.4Ω max. Key electrical parameters include 0.1nA off-leakage current at +25°C, -84dB crosstalk at 1MHz, and a -3dB bandwidth of 66MHz. It is housed in a 16-pin TSSOP package and supports an operating temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Four independent SPST switches configured as normally open contacts
• Rail-to-rail analog signal handling capability across specified supply ranges
• Low power consumption with TTL/CMOS logic compatibility via separate logic supply

Analog Switches, Multiplexers, Demultiplexers Applications

• Reed relay replacement in automated test equipment
• Audio signal routing systems
• ADC and data-acquisition systems
• Avionics and communications systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the component against official Analog Devices documentation to confirm pinout alignment and electrical specifications. Ensure that the logic supply voltage requirements are compatible with the system design before integration. Cross-reference the datasheet revision history for any updates to absolute maximum ratings or thermal characteristics.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when low distortion and high isolation are required for signal switching. The separate logic supply allows independent control of the analog and digital domains. Consider the on-resistance variation with temperature and signal voltage when designing precision circuits. Verify that the package thermal dissipation limits are not exceeded in the final application environment.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX4677/MAX4678/MAX4679 family of quad analog switches. While the MAX4677 features normally closed switches and the MAX4679 combines both types with break-before-make timing, the MAX4678 specifically provides four normally open channels. All variants share identical electrical performance metrics and packaging options within the series.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

MAX4677EUE+ offers identical electrical specifications but utilizes normally closed switches instead of normally open contacts. MAX4679EUE+ provides mixed normally open and normally closed configurations with guaranteed break-before-make switching. Both alternatives maintain the same package footprint and supply requirements.