MAX355CPE

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX355CPE is a dual 4-channel fault-protected analog multiplexer manufactured by Maxim Integrated. It utilizes a series N-channel, P-channel, N-channel structure to protect against overvoltage up to 40V beyond the supply rails during power-up, power-down, and fault conditions. The device operates from a single 4.5V to 36V supply or ±4.5V to ±18V dual supplies. Key electrical parameters include a maximum on-resistance of 350Ω, input leakage current less than 0.5nA at +25°C, and break-before-make operation. Digital inputs feature 0.8V and 2.4V logic thresholds for TTL and CMOS compatibility.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Fault protection circuitry safeguards devices from overvoltage up to 40V beyond supply rails during power-up, power-down, and fault conditions.
• Break-before-make operation prevents simultaneous connection of multiple channels to the output.
• All switches turn off when power supplies are removed, ensuring safe isolation.
• TTL and CMOS logic compatibility without requiring external pull-up resistors.

Analog Switches, Multiplexers, Demultiplexers Applications

• Data-acquisition systems
• Industrial and process control
• Avionics
• ATE equipment
• Signal routing

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'CPE' corresponds to the Plastic DIP package and the commercial temperature range (0°C to +70°C). Confirm that the component is sourced from authorized distributors to ensure authenticity, as older Maxim parts may have varying production statuses. Check for RoHS compliance requirements if applicable to your assembly process.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the MAX355CPE when dual independent 4-channel multiplexing with high-voltage fault protection is required. Ensure the application voltage does not exceed the ±40V absolute maximum rating relative to ground. Verify that the 350Ω on-resistance meets the signal integrity requirements of the downstream circuitry. Consider the E variant (-40°C to +85°C) if industrial temperature ranges are necessary.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX355 is part of the MAX354/MAX355 family of fault-protected analog multiplexers. It serves as a pin-compatible alternative to the ADG509F and an improved second source for the MAX358/MAX359. The device integrates precision switching with robust protection features, making it suitable for harsh environments where signal integrity and component safety are critical.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX355CPE is pin-compatible with the ADG509F. It also serves as an improved second source for the MAX359 and DG459. When substituting, verify that the replacement device maintains the same fault protection capabilities and on-resistance specifications to ensure circuit performance remains within design limits.