MAX4533CWP+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4533CWP+ 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. Off-leakage current is typically 0.5nA at +25°C and 10nA at +85°C. The component is housed in a 20-pin Wide SO package and supports an operating temperature range of 0°C to +70°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Rail-to-Rail signal handling for full supply range operation
• Fault protection on NO_ and NC_ terminals up to ±40V with power off
• TTL/CMOS-compatible logic inputs ensuring broad digital compatibility
• Pin-compatible design replacing industry-standard MAX333/MAX333A

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 suffix 'CWP+' against official documentation to confirm the wide SOIC package and commercial temperature grade. Ensure that the ordering information matches the exact manufacturer part number to avoid discrepancies in pinout or electrical characteristics during procurement.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when high-voltage fault tolerance is required without sacrificing signal integrity near the supply rails. The rail-to-rail capability distinguishes it from traditional series-FET switches. Verify that the system's logic levels align with the specified thresholds for the chosen supply voltage configuration.

Analog Switches, Multiplexers, Demultiplexers Part Context

This device belongs to the MAX4533 family of fault-protected analog switches. It serves as a direct replacement for older industry-standard parts like the MAX333. The C_ _ designation indicates the commercial temperature range variant within the broader product line.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

MAX333

Analog Switches, Multiplexers, Demultiplexers FAQ

How does the MAX4533 handle overvoltage faults?

During a fault condition where input exceeds supply rails, the COM_ output clamps to the appropriate polarity supply rail, providing unambiguous outputs while limiting leakage current.

Is power-supply sequencing required?

No, the MAX4533 does not require power-supply sequencing during power-up or power-down due to its internal protection circuitry.

What is the fault protection limit with power off?

The NO_ and NC_ terminals are protected from overvoltage faults up to ±40V when the device power is off.