MAX378EPE

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX378EPE is a high-voltage, fault-protected analog multiplexer manufactured by Analog Devices Inc./Maxim Integrated. It features an 8-channel single-ended (1-of-8) switching architecture housed in a 16-pin Plastic DIP package. The device utilizes a series N-channel/P-channel/N-channel structure to provide significant fault protection against overvoltage conditions. It operates from supply voltages ranging from ±4.5V to ±18V and supports continuous input voltages up to ±60V with power supplies active, or ±75V when power supplies are off. The component ensures TTL and CMOS logic compatibility without requiring pull-up resistors.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Series FET protection structure limits fault currents to nanoampere levels
• All switches automatically turn off when power supplies are removed
• Break-before-make operation prevents simultaneous channel connection
• Latchup-proof construction for enhanced reliability

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 'EPE' corresponds to the -40°C to +85°C temperature range and 16-pin Plastic DIP package configuration. Confirm that the substrate handling requirements align with system design constraints, as the substrate may be allowed to float or tied to V+. Ensure the procurement documentation references the correct manufacturer specifications for this part number.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the MAX378EPE for applications requiring robust fault protection against high-voltage transients on analog inputs. This component is suitable for systems where sensors remain powered while the multiplexer is off. Consider the ±4.5V to ±18V supply range and ensure the digital interface meets the 0.8V to 2.4V logic threshold requirements for proper TTL/CMOS compatibility.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX378EPE belongs to the MAX378/MAX379 family of high-voltage, fault-protected analog multiplexers. The MAX378 variant provides 8 single-ended channels, whereas the MAX379 offers 4 differential channels. Both share identical fault protection circuitry and pinout configurations within their respective packages, allowing for flexible system design based on channel count requirements.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Public confirmed substitute part numbers include MAX378CPE, MAX378CWG, MAX378EJE, MAX378MJE, and MAX378MLP. These variants offer different temperature ranges and packaging options but maintain functional equivalence.