MAX4712CPE

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4712CPE 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 a maximum of 25Ω at +25°C and guaranteed flatness over the specified signal range. Switching times are less than 125ns for turn-on and less than 80ns for turn-off. Digital inputs have logic thresholds ensuring TTL and CMOS compatibility. The package is a 16-pin Plastic DIP.

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 across the full supply voltage range.
• All switches automatically turn off when power is removed.
• Pin-compatible with industry-standard MAX391/MAX392/MAX393 devices.

Analog Switches, Multiplexers, Demultiplexers Applications

• Communication Systems
• Signal Routing
• Test Equipment
• Data-Acquisition

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'C' indicates the commercial temperature range of 0°C to +70°C. Confirm the 'P' suffix corresponds to the 16-pin Plastic DIP package. Check for RoHS compliance status as older Maxim Integrated parts may vary. Ensure the source document matches the exact part number to avoid confusion with the E-grade (-40°C to +85°C) variants.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component for applications requiring fault protection on analog inputs while maintaining low on-resistance. Verify that the required signal range fits within the single or dual supply limits. Consider the 16-pin PDIP footprint constraints. Ensure the logic interface meets the TTL/CMOS threshold requirements for the chosen supply voltage.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX4711/MAX4712/MAX4713 family of fault-protected, low-voltage analog switches. The MAX4712 specifically contains four normally open (NO) switches, distinguishing it from the MAX4711 (four NC) and MAX4713 (two NO, two NC). All three share identical pinouts and core electrical characteristics.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The datasheet explicitly states pin compatibility with the MAX391, MAX392, and MAX393. These can serve as direct replacements in existing PCB layouts, provided the designer accounts for the fact that only the NO_ and NC_ pins offer fault protection on the MAX4712 series.

Analog Switches, Multiplexers, Demultiplexers FAQ

Are the COM_ pins fault-protected?

No, the COM_ pins are not fault-protected. They act as normal CMOS switch terminals. Signals exceeding V+ or V- on these pins will cause high currents through internal ESD diodes.

What is the maximum fault voltage allowed on the NO_ or NC_ pins?

The maximum fault voltage on the NO_ or NC_ pins is ±12V, regardless of whether the device is powered on or off.

How does the device behave during a fault condition?

When a fault occurs, the input becomes high impedance. If the switch is on, clamp FETs source or sink current from the supply rails to the COM_ output, clamping it to the appropriate supply voltage.