MAX4633CSE+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4633CSE+ is a high-voltage, dual analog switch featuring fault-protected inputs and Rail-to-Rail signal handling capabilities. It contains two normally open double-pole/single-throw (DPST) switches housed in a 16-pin Narrow SOIC package. The device operates with dual power supplies ranging from ±4.5V to ±18V or a single supply between +9V and +36V. Key electrical parameters include an on-resistance of 85Ω (max) at +25°C, off-leakage current of 0.5nA at +25°C, and turn-on/turn-off times of 150ns/100ns (typical). It provides fault protection up to ±36V during operation and ±40V when powered off.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Fault-protected NO_ and NC_ terminals safeguard connected loads from overvoltage faults up to ±36V during operation and ±40V when unpowered.
• Rail-to-Rail signal handling ensures unambiguous outputs by clamping the COM_ terminal to the appropriate supply voltage during fault conditions without transition glitches.
• TTL- and CMOS-compatible digital inputs utilize fixed logic thresholds, eliminating the need for external level translation across specified supply ranges.

Analog Switches, Multiplexers, Demultiplexers Applications

• Automated Test Equipment (ATE)
• Data Acquisition Systems
• Industrial and Process Control Systems
• Avionics
• Redundant or Backup Systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'CSE+' against official manufacturer documentation to confirm the commercial temperature range and lead-free status. Confirm that the 16-Narrow SOIC package dimensions align with your PCB footprint requirements. Ensure input logic levels match the specified TTL/CMOS thresholds for your target supply voltage configuration.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when high-voltage fault protection is required on both poles of a DPST switch configuration. Verify that the maximum on-resistance of 85Ω meets your signal path loss requirements. Ensure the operating supply voltage remains within the ±4.5V to ±18V dual or +9V to +36V single supply limits to maintain specified leakage and switching performance.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX4633 is part of the MAX4631/MAX4632/MAX4633 family of fault-protected analog switches. While pin-compatible with industry-standard DG401/DG403/DG405 devices, it offers superior fault protection and rail-to-rail signal handling. The MAX4633 specifically provides two DPST switches, distinguishing it from the SPST (MAX4631) and SPDT (MAX4632) variants within the same series.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct pin-compatible replacements include the DG401, DG403, and DG405; however, these legacy devices lack the integrated fault protection and rail-to-rail capabilities of the MAX4633. Verify that existing circuit designs can tolerate the different internal clamp behavior during overvoltage events.