MAX391EPE

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX391EPE is a quad single-pole single-throw normally-closed analog switch manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 3V to 15V for single supplies or ±3V to ±8V for dual supplies. The device features a maximum on-resistance of 35 ohms and a channel-to-channel matching of 300 milliohms. Key electrical parameters include a maximum charge injection of 2pC, off-state leakage current of 100pA, and crosstalk of -85dB at 1MHz. Switching times are specified with a maximum turn-on time of 130ns and turn-off time of 75ns. The component is housed in a 16-PDIP package and supports an operating temperature range from -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Quad SPST-NC configuration providing four independent signal paths in a single package
• Low on-resistance of 35 ohms with tight channel-to-channel matching for signal integrity
• Minimal charge injection of 2pC to reduce signal distortion during switching
• High isolation performance with -85dB crosstalk at 1MHz

Analog Switches, Multiplexers, Demultiplexers Applications

• Signal routing in data acquisition systems
• Audio signal switching and matrix applications
• Test and measurement equipment signal paths
• Industrial process control signal multiplexing

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix EPE corresponds to the PDIP-16 through-hole package variant when sourcing. Confirm RoHS compliance status as historical documentation may vary. Check manufacturer notices for obsolescence or lifecycle changes prior to finalizing procurement plans. Ensure the supplier provides valid traceability documents for quality assurance purposes.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a normally-closed state is required for signal paths upon power loss. Evaluate the 35-ohm on-resistance against the load requirements to ensure acceptable voltage drop. Consider the 130ns/75ns switching speeds for timing constraints in the application circuit. Verify that the 16-pin DIP package fits the available board space and assembly methods.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX391 belongs to the Maxim Integrated family of CMOS analog switches designed for general-purpose signal routing. It complements other devices in the series offering different configurations such as SPST-NO or SPDT variants. The part is widely recognized in industrial and communication sectors for its reliability and consistent performance across the specified temperature range.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The ADG441BNZ is listed as a public confirmed substitute part number. Verify pin compatibility and electrical parameter alignment before substitution.