MAX379EWG

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX379EWG is a high-voltage, fault-protected analog multiplexer featuring four differential channels (2-of-8 configuration). It utilizes a series N-channel/P-channel/N-channel structure to provide significant fault protection. The device operates from ±4.5V to ±18V supplies and ensures TTL and CMOS compatibility for all digital inputs without requiring pull-up resisters. Break-before-make operation is guaranteed to prevent input-to-input shorts. Power dissipation is less than 2mW. The component is housed in a 16-pin Plastic DIP package.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Fault protection allows continuous ±60V input with power supplies on and withstands ±75V when supplies are off.
• All switches turn off automatically when power supplies are removed, limiting leakage to nanoamperes.
• On-channel turns off if overvoltage occurs on the input or output.
• Latchup-proof construction with low-power monolithic CMOS design.

Analog Switches, Multiplexers, Demultiplexers Applications

• Data Acquisition Systems
• Industrial and Process Control Systems
• Avionics Test Equipment
• Signal Routing Between Systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix EWG corresponds to the -40°C to +85°C temperature range and 16-pin Plastic DIP package. Confirm that the ordering information matches the manufacturer's current documentation, as older datasheets may list obsolete status or alternative packaging options for this part number.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the MAX379EWG when differential signal routing is required within a single multiplexer. Ensure the application demands fault protection against inputs exceeding ±60V while powered. Verify that the ±4.5V to ±18V supply range aligns with the system power architecture and that the 16-pin DIP footprint fits the PCB layout constraints.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX379 is part of the MAX378/MAX379 family of high-voltage, fault-protected analog multiplexers manufactured by Maxim Integrated. While the MAX378 provides eight single-ended channels, the MAX379 offers four differential channels. Both share identical fault protection circuitry and electrical characteristics regarding voltage handling and switching speeds.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult the manufacturer's obsolescence notices or cross-reference guides for potential replacements if this specific part number is discontinued.