MAX4712ESE+T

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4712ESE+T is a quad, single-pole/single-throw (SPST) analog switch featuring fault protection and rail-to-rail signal handling. It operates from a single +2.7V to +11V supply or dual ±2.7V to ±5.5V supplies. The device provides low on-resistance with guaranteed flatness over the specified signal range. Switching times are less than 125ns for turn-on and less than 80ns for turn-off. All digital inputs have +0.8V to +2.4V logic thresholds, ensuring TTL and CMOS compatibility. The NO_ and NC_ pins are fault-protected, while COM_ pins are not.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Fault-protected analog inputs allow signals beyond supply rails without excessive current draw
• Rail-to-rail signal handling capability for full voltage range operation
• Output clamping to appropriate supply voltages during fault conditions protects downstream circuitry
• Pin-compatible with industry-standard MAX391/MAX392/MAX393 switches

Analog Switches, Multiplexers, Demultiplexers Applications

• Communication Systems
• Signal Routing
• Test Equipment
• Data-Acquisition
• Industrial and Process Control Systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing this component. Confirm that the E-grade designation corresponds to the -40°C to +85°C operating temperature range required for your application environment. Ensure the narrow SOIC-16 package dimensions match your PCB footprint constraints before finalizing procurement.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the MAX4712 variant specifically for normally open configurations, as opposed to the MAX4711 (normally closed) or MAX4713 (mixed). Verify that the maximum on-resistance of 25Ω at +25°C meets your signal integrity requirements. Ensure input logic levels align with the specified V_IH and V_IL thresholds for your system's microcontroller or logic family.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the MAX4711/MAX4712/MAX4713 family of fault-protected, low-voltage analog switches manufactured by Analog Devices/Maxim Integrated. These devices share identical pinouts and core functionality, differing primarily in their internal switch configuration (normally open vs. normally closed). They are designed for applications requiring robust protection against overvoltage conditions on analog lines.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX4712ESE is pin-compatible with the MAX392. When replacing legacy designs, verify that the existing board layout accommodates the fault-protection features, as only the NO_ and NC_ pins are protected. Ensure the replacement part matches the required temperature grade and packaging format.

Analog Switches, Multiplexers, Demultiplexers FAQ

Are the COM_ pins fault-protected?

No, the COM_ pins are not fault-protected. If a voltage source connected to a COM_ pin exceeds the supply voltages, it may cause high currents to flow through internal ESD diodes, potentially damaging the device.

How does the device behave during a power-off fault condition?

When power is removed, the fault protection remains active. The NO_ or NC_ terminals act as a virtual open circuit, allowing fault voltages up to ±12V without drawing excessive current.

What is the recovery time after a fault condition?

The output recovery delay time is typically 700ns when using dual supplies. This value depends on the COM_ output resistance and capacitance and is not production tested or guaranteed.