MAX4503ESA

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4503ESA is a low-voltage, dual-supply, single-pole/single-throw (SPST) CMOS analog switch manufactured by Analog Devices Inc./Maxim Integrated. It operates continuously with dual supplies between ±1V and ±6V and handles rail-to-rail analog signals. The device features guaranteed on-resistance of 250Ω at ±5V supplies, low off-leakage current of 1nA at +25°C, and fast switching speeds with turn-on time of 150ns and turn-off time of 100ns. It is housed in an 8-pin SO package and supports an operating temperature range from -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Dual-supply operation capability from ±1V to ±6V
• CMOS-logic compatible input architecture without ground pin
• Guaranteed low off-leakage currents for signal isolation

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 against official documentation to confirm package type and temperature grade. Ensure compatibility with existing supply voltages and logic levels before procurement. Confirm availability status as manufacturing schedules may change.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component for applications requiring dual-supply SPST switching with low leakage. Compare on-resistance specifications across different supply voltages. Consider the absence of a ground pin when designing the control interface circuitry.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX4503/MAX4504 family of low-voltage CMOS analog switches. The MAX4503 variant is normally open, while the MAX4504 is normally closed. They share similar electrical characteristics but differ in default switch state configuration.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX4501 and MAX4502 are listed as pin-for-pin equivalents for single-supply operation. Verify voltage requirements and supply configurations when considering these alternatives.

Analog Switches, Multiplexers, Demultiplexers FAQ

Does the MAX4503ESA have a ground pin?

No, the MAX4503ESA has no ground pin. The digital input is CMOS-logic compatible even without a ground connection due to its unique logic input architecture.

What is the maximum analog signal range?

Each switch can handle rail-to-rail analog signals within the limits set by the dual supply voltages, typically between V- and V+.

How does the logic input work without a ground pin?

The logic input has a low-current pull-up to V+ and uses an internal comparator referenced to V+ to determine logic levels, allowing CMOS compatibility.