MAX4633ESE

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4633ESE+ 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 SO 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 a maximum on-resistance of 85Ω at +25°C, an off-leakage current of 0.5nA at +25°C, and a turn-on time of 150ns. The NO_ and NC_ terminals are protected from overvoltage faults up to ±36V during power-up or power-down.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Fault protection for NO_ and NC_ terminals against overvoltage conditions
• Rail-to-Rail signal handling capability without power-supply sequencing
• TTL- and CMOS-logic compatible digital inputs
• Pin-compatible with industry-standard DG401/DG403/DG405 devices

Analog Switches, Multiplexers, Demultiplexers Applications

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

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix to confirm the temperature range and packaging type. The 'E' suffix indicates operation within the -40°C to +85°C commercial/industrial range. Confirm that the Narrow SOIC package matches the target PCB footprint requirements. Ensure compatibility with existing design constraints regarding pinout and thermal dissipation limits before finalizing procurement.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the MAX4633ESE+ when dual DPST switching with high-voltage fault protection is required. This component is suitable for applications needing rail-to-rail signal integrity and TTL/CMOS logic compatibility. Consider the 85Ω on-resistance and 150ns switching speed for bandwidth requirements. Verify that the ±36V fault protection rating aligns with the system's maximum expected transient voltages on the signal lines.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX4633 is part of the MAX4631/MAX4632/MAX4633 family of fault-protected, high-voltage dual analog switches. While the MAX4631 offers two SPST switches and the MAX4632 provides two SPDT switches, the MAX4633 specifically integrates two DPST configurations. All members of this series share identical pinouts and core fault-protection architectures, allowing for flexible design upgrades over legacy non-fault-protected devices.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX4633 is designed as a direct pin-compatible replacement for the DG405. When substituting, verify that the application does not require fault protection on the COM_ pins, as only NO_ and NC_ pins are protected in this architecture.