MAX4632ESE-T

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4632ESE-T is a high-voltage, dual analog switch featuring fault-protected inputs and Rail-to-Rail signal handling capabilities. It contains two normally open/normally closed single-pole/double-throw (SPDT) 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. On-resistance is typically 62Ω at +25°C with a maximum of 85Ω, matched between channels to 6Ω max. Off-leakage current is limited to 0.5nA at +25°C and 5nA at +85°C. The NO_ and NC_ terminals are protected from overvoltage faults up to ±25V during operation and ±40V when powered off.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Fault protection on NO_ and NC_ terminals prevents damage from overvoltage conditions while clamping the COM_ output to the appropriate supply rail.
• Rail-to-Rail signal handling allows signals to pass through the switch even when they slightly exceed the power-supply rails.
• Pin-compatible with industry-standard DG401/DG403/DG405 devices for easy upgrades.
• TTL- and CMOS-logic compatible inputs ensure interoperability with standard logic families.

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 suffix 'ESE' corresponds to the 16-pin Narrow SOIC package and the '-T' indicates tape-and-reel packaging. Confirm the temperature range matches the 'E' grade specification (typically -40°C to +85°C). Ensure the ordering part number aligns with the manufacturer's current production status and lead time requirements.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the MAX4632 variant specifically for Single-Pole/Double-Throw (SPDT) switching requirements, as opposed to the SPST (MAX4631) or DPST (MAX4633) configurations. Verify that the application requires fault protection on both Normally Open and Normally Closed terminals, noting that the MAX4632 supports ±25V fault protection with ±15V supplies. Ensure the supply voltage range fits within the ±4.5V to ±18V dual or +9V to +36V single supply limits.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX4632 is part of the MAX4631/MAX4632/MAX4633 family of fault-protected, high-voltage dual analog switches. These devices upgrade traditional CMOS switches by incorporating parallel N-channel and P-channel MOSFET structures. This architecture enables low on-resistance and true Rail-to-Rail operation while providing robust protection against input overvoltages that could otherwise damage connected circuitry.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX4632 is pin-compatible with the DG403. When replacing legacy DG403 units, verify that the PCB layout accommodates the different internal structure and fault-protection characteristics. Ensure that the COM_ pins are not exposed to voltages exceeding the absolute maximum ratings during normal operation.