MAX355CWE+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX355CWE+ is a dual 4:1 fault-protected analog multiplexer manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single 4.5V to 36V supply or ±4.5V to ±18V dual supplies. The device features a maximum on-resistance of 350Ω and input leakage current less than 0.5nA at +25°C. It provides overvoltage protection up to 40V beyond the supply rails during power-up, power-down, and fault conditions. The component is housed in a 16-Wide SOIC package and supports an operating temperature range of 0°C to +70°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Fault-protected series N-channel, P-channel, N-channel structure protects against overvoltages up to 40V beyond supply rails.
• Guaranteed break-before-make operation prevents simultaneous connection of multiple inputs.
• TTL and CMOS logic compatibility without requiring pull-up resistors.
• All switches turn off when power supplies are removed.

Analog Switches, Multiplexers, Demultiplexers Applications

• Data-acquisition systems
• Industrial and process control
• Avionics
• Automated test equipment (ATE)
• Signal routing

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'CWE+' corresponds to the Wide SOIC package and commercial temperature range (0°C to +70°C). Confirm RoHS compliance status with the supplier. Ensure the ordering quantity matches standard packaging specifications provided by the manufacturer.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component for applications requiring high-voltage fault protection and low leakage currents. Verify that the required signal voltage range stays within the safe operating area defined by the supply rails. Consider the 350Ω on-resistance impact on signal integrity for high-impedance sources.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX355CWE+ belongs to the MAX354/MAX355 family of fault-protected analog multiplexers. It serves as a dual-channel version of the single-channel MAX354. This family is designed for robust signal switching in harsh environments where overvoltage events are possible.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The datasheet identifies the ADG508F/ADG509F as pin-compatible alternatives. These devices offer similar functionality but may have different electrical characteristics such as on-resistance and leakage current. Verify pinout and parameter compatibility before substitution.