MAX355EWE

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX355EWE is a dual 4:1 fault-protected analog multiplexer in a 16-pin Wide SOIC package. It operates from single supplies of 4.5V to 36V or dual supplies of ±4.5V to ±18V. The device features a maximum on-resistance of 350Ω and input leakage current below 0.5nA at +25°C. Digital inputs support TTL and CMOS logic with thresholds of 0.8V and 2.4V. Break-before-make switching is guaranteed, and the unit consumes less than 1.5mW of power.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Series N-channel, P-channel, N-channel structure protects against overvoltage up to 40V beyond supply rails during power-up, power-down, and fault conditions.
• All switches turn off when power supplies are removed, ensuring no unintended signal paths exist.
• Output clamps at approximately 1.5V below the supply rails to protect sensitive downstream circuit components.
• Guaranteed break-before-make operation prevents simultaneous connection of multiple input channels.

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' confirms the -40°C to +85°C industrial temperature range. Confirm the 'WE' designation corresponds to the 16-pin Wide SOIC plastic package. Ensure the component matches the manufacturer's current specifications for Analog Devices Inc./Maxim Integrated products before integration into designs.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when dual 4:1 multiplexing with high-voltage fault protection is required. It serves as a pin-compatible alternative to ADG508F/ADG509F and an improved second source for MAX358/MAX359. Verify that the 350Ω on-resistance meets the signal integrity requirements of the application.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX355EWE belongs to the MAX354/MAX355 family of fault-protected analog multiplexers. While the MAX354 provides a single 8-channel configuration, the MAX355 offers two independent 4-channel switches. Both devices share identical fault-protection circuitry and electrical characteristics, differing only in channel count and address pin configurations.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

MAX355CWE

Analog Switches, Multiplexers, Demultiplexers FAQ

How does the MAX355 handle overvoltage when power supplies are off?

The series FET protection scheme limits input current to sub-microamp levels even when V+ and V- are absent, protecting the device from continuous input voltages up to ±40V.

Is the MAX355 compatible with standard TTL logic levels?

Yes, all digital inputs have 0.8V and 2.4V logic thresholds, ensuring compatibility with both TTL and CMOS logic without requiring pull-up resistors.

What is the maximum operating voltage for the MAX355EWE?

The device supports a single supply voltage range of 4.5V to 36V or a dual supply range of ±4.5V to ±18V.