MAX379CPE+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX379CPE+ 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 features TTL and CMOS compatible digital inputs. Key electrical parameters include an on-resistance of 2.0kΩ to 3.5kΩ, input leakage current of -1.0µA to 1.0µA with overvoltage, and break-before-make delay of 25ns to 200ns. It is housed in a 16-pin Plastic DIP package.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Series FET switching scheme provides fault protection against continuous ±60V input voltages with power supplies active and ±75V with power supplies off.
• All switches turn off when power supplies are removed, limiting input current to nanoamperes to protect sensors and signal sources.
• Break-before-make operation prevents simultaneous connection of input channels, eliminating input-to-input shorts.

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 ordering suffix 'CPE' corresponds to the 16-pin Plastic DIP package and the 0°C to +70°C temperature range as defined in the official Maxim Integrated datasheet. Confirm that the component meets RoHS compliance standards if required for the target assembly process. Ensure the supply chain source provides valid traceability documentation for this discontinued or legacy part number.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the MAX379CPE+ when a 2-of-8 differential multiplexer topology is required alongside robust fault protection capabilities. This component is suitable for applications where input signals may exceed standard supply rails or where system power loss must not compromise connected sensor integrity. Verify that the ±4.5V to ±18V operating voltage range aligns with the system's available power rails.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX379 is part of the MAX378/MAX379 family of high-voltage, fault-protected analog multiplexers manufactured by Analog Devices / Maxim Integrated. While the MAX378 offers eight single-ended channels, the MAX379 provides four differential channels within the same protective architecture. Both devices share identical fault protection mechanisms and logic interface specifications.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Consult the manufacturer's official documentation for confirmed substitute part numbers. Cross-reference pin configurations and electrical characteristics carefully, as generic replacements may lack the specific series FET fault protection architecture.