MAX4533EWP+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4533EWP+ is a quad, single-pole/double-throw (SPDT) analog switch manufactured by Analog Devices Inc./Maxim Integrated. It features fault-protected inputs and Rail-to-Rail signal handling capabilities. The device operates from dual ±4.5V to ±18V power supplies or a single +9V to +36V supply. On-resistance is specified at a maximum of 175Ω with channel matching up to 10Ω max. Off-leakage current is typically 0.5nA at +25°C. The component is housed in a 20-pin Wide SO package and supports an extended operating temperature range from -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Rail-to-Rail signal handling allows signals to pass through the switch even when they exceed the power-supply rails.
• Fault protection on NO_ and NC_ terminals withstands overvoltage faults up to ±25V with power on and ±40V with power off.
• During fault conditions, the COM_ output clamps to the appropriate polarity supply rail to ensure unambiguous outputs.
• TTL/CMOS-compatible logic inputs ensure compatibility with standard digital logic levels across various supply voltages.

Analog Switches, Multiplexers, Demultiplexers Applications

• Redundant and Backup Systems
• Portable Instruments
• Test Equipment
• Data-Acquisition Systems
• Communications Systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix EWP corresponds to the 20-pin Wide SO package and the E-grade temperature rating (-40°C to +85°C). Confirm that the component meets RoHS compliance requirements for the intended application. Ensure the design accounts for the absolute maximum ratings regarding voltage differentials between V+ and V-, as well as continuous power dissipation limits within the specified thermal environment.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when high-voltage fault tolerance and rail-to-rail signal integrity are required in a compact SPDT configuration. The wide supply voltage range accommodates both single and dual supply architectures. Consider the 175Ω maximum on-resistance and leakage characteristics against system signal accuracy requirements. Verify that the 20-pin Wide SO footprint fits the available PCB space and thermal management constraints.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX4533 series is pin-compatible with industry-standard MAX333 and MAX333A devices, facilitating direct upgrades or replacements in existing designs. The E-series variant specifically extends the operational temperature range compared to the C-series, making it suitable for broader industrial environments. This family provides a robust solution for applications requiring reliable switching under potentially abusive electrical conditions.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct pin-compatible substitutes include the MAX333 and MAX333A. Other potential replacements within the Analog Devices portfolio should be evaluated based on matching on-resistance, fault protection voltage limits, and package dimensions to ensure seamless integration without redesigning the host circuit board.