MAX354CWE

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX354CWE is a fault-protected analog multiplexer housed in a 16-pin Wide SOIC package. It features an 8-channel, single-pole-to-single-throw (SPST) configuration with a maximum on-resistance of 350 ohms. The device operates from a single supply voltage ranging from 4.5V to 36V or dual supplies from ±4.5V to ±18V. Input leakage current is specified at less than 0.5nA at +25°C and less than 5nA at +85°C. The component supports break-before-make switching with a transition time of up to 250ns and functions within an operating temperature range of 0°C to +70°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Series N-channel, P-channel, N-channel structure provides continuous protection against overvoltage up to 40V beyond the supply rails during power-up, power-down, and fault conditions.
• Guaranteed break-before-make operation prevents simultaneous connection of input channels to the output, eliminating input-to-input shorts.
• All switches remain off when power supplies are removed, ensuring safe isolation during system power loss.
• Digital inputs utilize 0.8V and 2.4V logic thresholds, enabling direct compatibility with both TTL and CMOS logic families without requiring external pull-up resistors.

Analog Switches, Multiplexers, Demultiplexers Applications

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

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'CWE' corresponds to the required commercial temperature range and plastic wide SOIC packaging. Confirm that the ordering information matches the exact pin count and package dimensions for your PCB layout. Ensure the selected variant meets the necessary environmental specifications for your intended application environment.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when high-voltage fault protection is critical for safeguarding downstream circuitry. The MAX354 is suitable for applications requiring robust analog signal routing under varying supply conditions. Consider the 350 ohm on-resistance limit and the specific voltage ranges to ensure compatibility with your signal levels and source impedances.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX354 belongs to the Maxim Integrated MAX354/MAX355 family of fault-protected analog multiplexers. This series is designed to protect sensitive components from overvoltage events. The MAX354 specifically offers eight independent channels, whereas the MAX355 provides two four-channel configurations within the same package footprint.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The datasheet identifies the ADG508F as a pin-compatible alternative. Verify electrical characteristics and package dimensions before substitution. Cross-reference with other devices in the MAX35x series if channel count or voltage ratings differ from the MAX354CWE specifications.