MAX4533CWP+T

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4533CWP+T is a quad, single-pole/double-throw (SPDT) analog switch featuring fault protection and rail-to-rail signal handling. It operates from dual ±4.5V to ±18V supplies or a single +9V to +36V supply. The device provides ±25V fault protection with power on and ±40V with power off. On-resistance is 175Ω maximum, matched between switches to 10Ω maximum. Off-leakage current is 0.5nA at +25°C and 10nA at +85°C. Logic inputs are TTL/CMOS compatible. The component is housed in a 20-pin Wide SO package and operates within a temperature range of 0°C to +70°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Rail-to-Rail signal handling capability
• Fault protection up to ±40V with power off
• Pin-compatible with industry-standard MAX333/MAX333A

Analog Switches, Multiplexers, Demultiplexers Applications

• Redundant/Backup Systems
• Portable Instruments
• Test Equipment Data-Acquisition Systems
• Communications Systems
• Industrial and Process Control Avionics Systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'CWP+T' against official documentation to confirm the Wide SOIC package, commercial temperature grade, and tape-and-reel packaging format. Ensure compatibility with existing board layouts due to pin-out similarities with legacy parts. Confirm RoHS compliance status for the specific manufacturing batch before integration into final assemblies.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when high-voltage fault tolerance is required alongside standard SPDT switching functionality. Verify that the 175Ω maximum on-resistance meets system signal integrity requirements. Ensure the operating voltage range aligns with available power rails. Consider thermal dissipation limits if multiple channels are active simultaneously under heavy load conditions.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX4533 family of fault-protected analog switches. It serves as a direct replacement for older MAX333 variants while offering enhanced overvoltage protection capabilities. The series supports both single and dual supply configurations, making it suitable for diverse industrial and instrumentation environments requiring robust signal routing.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

MAX4533EAP+

Analog Switches, Multiplexers, Demultiplexers FAQ

How does the MAX4533 handle overvoltage faults?

During a fault condition where input exceeds supply rails, the NO_ and NC_ terminals become high impedance. The COM_ output clamps to the appropriate polarity supply rail, providing up to ±10mA of load current.

What is the logic input compatibility?

All digital inputs have +0.8V and +2.4V logic thresholds, ensuring compatibility with both TTL and CMOS logic when using ±15V supplies or a +12V supply.

Does the device require power-supply sequencing?

No power-supply sequencing is required during power-up or power-down. All switches turn off automatically when power is removed.