MAX355EWE+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX355EWE+ is a dual 4:1 analog multiplexer in a 16-pin Wide SOIC package. It operates from a single supply of 4.5V to 36V or dual supplies of ±4.5V to ±18V. The device features a maximum on-resistance of 350Ω and an input leakage current of less than 0.5nA at +25°C. It provides fault protection for continuous input voltages up to ±40V, regardless of power supply status. Digital inputs are compatible with TTL and CMOS logic levels without requiring pull-up resistors.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Series N-channel, P-channel, N-channel structure protects against overvoltage beyond supply rails during power-up, power-down, and fault conditions.
• Break-before-make operation prevents simultaneous connection of multiple input channels to the output.
• All switches turn off when power supplies are removed, ensuring no signal path exists during power loss.
• TTL and CMOS logic compatibility is achieved through fixed 0.8V and 2.4V logic thresholds.

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 'E' indicates the extended temperature range of -40°C to +85°C. Confirm the 'WE+' designation corresponds to the 16-pin Wide SOIC plastic package. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the manufacturer's ordering information to validate availability and lead times directly with Analog Devices.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when fault protection up to ±40V is required independent of power states. The dual 4:1 configuration suits applications needing two independent signal paths. Verify that the 350Ω on-resistance meets the system's voltage drop requirements. Ensure the operating voltage range aligns with the available single or dual supply rails in the design.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX355EWE+ belongs to the MAX354/MAX355 family of fault-protected analog multiplexers. It serves as a pin-compatible alternative to older Maxim Integrated parts like the MAX358 and DG459. The device integrates high-voltage protection circuitry within a standard wide SOIC footprint, facilitating direct replacement in legacy designs requiring robust analog switching capabilities.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The datasheet identifies the MAX355EWE+ as an improved second source for the MAX358 and MAX359. It is also pin-compatible with the ADG508F and ADG509F. Verify electrical parameters such as on-resistance and leakage currents before substituting these specific part numbers.