MAX4502EPA

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4502EPA is a single-pole/single-throw (SPST), low-voltage, single-supply CMOS analog switch manufactured by Analog Devices Inc./Maxim Integrated. It features a normally closed (NC) configuration and operates continuously with a single supply between +2V and +12V. The device handles Rail-to-Rail analog signals with an off-leakage current of 1nA at +25°C or 10nA at +85°C. Digital inputs utilize 0.8V and 2.4V logic thresholds for TTL/CMOS compatibility at +5V. Electrical characteristics include a maximum on-resistance of 350Ω at +5V supply and 800Ω at +3V supply. Switching speeds are specified as 75ns turn-on time and 50ns turn-off time at +5V. The component is housed in an 8-pin Plastic DIP package and supports an operating temperature range from -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Single-supply operation across a wide voltage range from +2V to +12V
• Normally closed (NC) SPST configuration for signal routing
• TTL and CMOS logic compatible digital control inputs
• Rail-to-Rail analog signal handling capability

Analog Switches, Multiplexers, Demultiplexers Applications

• Battery-operated equipment
• Audio and video signal routing
• Low-voltage data-acquisition systems
• Communications circuits
• PCMCIA cards

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix 'EPA' corresponds to the 8-pin Plastic DIP package variant when sourcing components. Confirm that the extended industrial temperature range (-40°C to +85°C) meets the operational requirements of the target environment. Ensure the normally closed (NC) state aligns with the circuit design logic, as this differs from the normally open MAX4501 variant. Cross-reference the manufacturer's latest documentation for any potential obsolescence notices or lifecycle status updates before finalizing procurement plans.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the MAX4502EPA when a normally closed analog switch is required within a single-supply system. This part is suitable for applications demanding low power consumption and compatibility with standard digital logic levels. Consider the 8-pin DIP package for through-hole mounting needs or prototyping. Evaluate the on-resistance specifications against the load requirements, noting that RON increases at lower supply voltages such as +3V. Ensure the thermal management capabilities of the DIP package support the expected power dissipation in the application.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX4502EPA belongs to the MAX4501/MAX4502 family of low-voltage CMOS analog switches. While the MAX4501 offers a normally open configuration, the MAX4502 provides a normally closed state, allowing designers to choose based on default signal path requirements. Both variants share identical electrical performance metrics and packaging options, differing primarily in their internal switch topology. This family is designed for cost-effective signal switching in portable and battery-powered devices.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX4501EPA serves as a functional substitute if a normally open configuration is acceptable instead of normally closed. Other package variants within the same series, such as MAX4502ESA (SOIC) or MAX4502EUK-T (SOT23-5), offer equivalent electrical performance with different physical footprints.