MAX4512CSE+T

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4512CSE+T is a quad, single-pole/single-throw (SPST) analog switch manufactured by Analog Devices / Maxim Integrated. It features fault-protected inputs and rail-to-rail signal handling capability. 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 175Ω and an on-resistance match between channels of 10Ω max. Off-leakage current is specified at 0.5nA at +25°C and 10nA at +85°C. The package is a 16-pin Narrow SOIC.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Fault protection on NO_ and NC_ terminals up to ±36V during operation and ±40V when powered off.
• Rail-to-Rail signal handling allows signals within or slightly beyond supply rails to pass through the switch.
• Output clamped to appropriate supply voltage during fault conditions without transition glitches.
• Pin-compatible with industry-standard non-protected switches such as DG411/DG412/DG413.

Analog Switches, Multiplexers, Demultiplexers Applications

• ATE Equipment
• Data Acquisition Systems
• Industrial and Process-Control Systems
• Avionics
• Redundant/Backup Systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the component authenticity by checking the manufacturer marking against the official datasheet specifications. Confirm the ordering suffix matches the required temperature range and packaging type. Ensure the supplier provides valid traceability documentation for the Analog Devices / Maxim Integrated brand. Cross-reference the part number with authorized distributor lists to avoid counterfeit components.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when fault protection is required on the normally open terminals. Verify that the application voltage does not exceed the ±36V operational limit or ±40V power-off limit. Ensure the logic input thresholds are compatible with the system's TTL or CMOS levels at the chosen supply voltage. Consider the on-resistance variation across the signal range for precision applications.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX4512CSE+T belongs to the MAX4511/MAX4512/MAX4513 family of quad SPST analog switches. Unlike the MAX4511 which uses normally closed switches, the MAX4512 utilizes four normally open switches. The MAX4513 combines two normally closed and two normally open switches. All variants share identical pinouts and fault-protection characteristics.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The datasheet confirms pin compatibility with DG411, DG412, DG413, DG201, DG202, and DG213. Direct replacement requires verifying that the existing circuit design can tolerate the fault-protection behavior, specifically the clamping of the COM_ output during overvoltage events on the NO_ pins.