MAX368CPN

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX368CPN+ is a fault-protected analog multiplexer manufactured by Analog Devices Inc. (Maxim Integrated). It features an 8:1 single-channel configuration housed in an 18-pin PDIP package for through-hole mounting. The device operates on dual supplies ranging from ±4.5V to 18V, with a maximum operating voltage of 18V. Key electrical parameters include a maximum on-resistance of 1.8 kOhms, a maximum power supply current of 2 mA, and a charge injection of 55pC. Switching performance specifies a maximum turn-on time of 1.5 µs and a turn-off time of 1 µs. The component supports an industrial temperature range of 0°C to +70°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Integrated fault protection circuitry designed to safeguard the switch against overvoltage conditions at the input or output terminals.
• Latch-up immunity ensures stable operation and prevents destructive latch-up events during transient voltage spikes or power supply disturbances.

Analog Switches, Multiplexers, Demultiplexers Applications

• Data acquisition systems requiring signal routing from multiple sources.
• Industrial process control instrumentation involving sensor multiplexing.
• Test and measurement equipment utilizing analog signal switching.

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix designation, as the MAX368CPN+ indicates commercial grade availability while other variants may differ. Confirm RoHS compliance status directly with the manufacturer, as historical data suggests potential non-compliance for older production runs. Check for End-of-Life (EOL) notifications or Product Change Notices (PCN) regarding discontinuation, as this component family has faced obsolescence notices. Ensure the selected package matches the required PCB footprint for 18-pin DIP configurations.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the MAX368EPN variant if operation within an extended temperature range of -40°C to +85°C is required, as the CPN version is limited to 0°C to +70°C. Evaluate the 1.8 kOhm on-resistance to ensure it meets the signal integrity requirements of the specific application. Consider the 55pC charge injection value when designing circuits sensitive to switching transients. Verify that the dual supply voltage capability aligns with the available power rails in the system design.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX368 belongs to the Maxim Integrated analog multiplexer family, specifically engineered for robust signal switching in harsh environments. It complements other devices in the series such as the MAX369, which offers similar functionality with potentially different pinout or channel configurations. This component represents the legacy CMOS technology line prior to newer low-power replacements.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX368EPN is the verified industrial-grade equivalent offering extended temperature support. Direct pin-compatible substitutes should be evaluated based on on-resistance and fault protection specifications.