MAX4503EPA

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4503EPA is a low-voltage, dual-supply, single-pole/single-throw (SPST) CMOS analog switch manufactured by Analog Devices Inc./Maxim Integrated. It features a normally open configuration and operates with dual supplies ranging from ±1V to ±6V. The device handles rail-to-rail analog signals with an on-resistance of up to 250Ω at ±5V supplies. Key electrical parameters include off-leakage current of 1nA at +25°C, charge injection of 10pC maximum, and switching speeds of 150ns turn-on and 100ns turn-off. It utilizes a unique logic input architecture compatible with CMOS logic without requiring a ground pin.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Dual-supply operation capability from ±1V to ±6V
• CMOS-logic compatible digital input architecture
• Low off-leakage and on-leakage currents for signal integrity
• Fast switching speed with minimal charge injection

Analog Switches, Multiplexers, Demultiplexers Applications

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

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix 'EPA' corresponds to the -40°C to +85°C temperature range and 8-pin Plastic DIP package. Confirm that the component matches the original Maxim Integrated specifications before integration. Check for any recent product change notices or obsolescence status directly from the manufacturer's official channels to ensure long-term availability.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the MAX4503EPA when a normally open SPST switch is required for dual-supply applications. Ensure the system voltage stays within the ±1V to ±6V range. Consider the MAX4501/MAX4502 if single-supply operation is needed instead. Verify that the 250Ω on-resistance meets the signal path requirements for the specific application impedance.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX4503EPA belongs to the MAX4503/MAX4504 family of low-voltage CMOS analog switches. It is distinct from the MAX4504, which offers a normally closed configuration. The 'E' suffix denotes the extended industrial temperature range, while 'PA' indicates the 8-pin plastic DIP package. This part serves as a direct replacement for similar legacy Maxim analog switches in dual-supply designs.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX4501 and MAX4502 are pin-for-pin equivalents designed for single-supply operation. For normally closed functionality, the MAX4504EPA is the direct counterpart within the same package and temperature range.