MAX4503CUK+T

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4503CUK+T 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 (NO) configuration and operates with dual supplies ranging from ±1V to ±6V. The device handles rail-to-rail analog signals and offers guaranteed on-resistance of 250Ω at ±5V supplies. Key electrical parameters include off-leakage current of 1nA at +25°C and turn-on/turn-off times of 150ns and 100ns respectively. 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 spanning ±1V to ±6V for flexible power configurations
• Normally open (NO) signal path configuration for specific switching requirements
• CMOS-logic compatible digital input architecture eliminating the need for a ground pin
• Low charge injection performance ensuring minimal signal distortion during switching

Analog Switches, Multiplexers, Demultiplexers Applications

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

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the component authenticity through official manufacturer channels or authorized distributors. Confirm the ordering suffix matches the required temperature range and packaging specifications. Ensure the supply voltage limits align with system design constraints to prevent damage. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a normally open SPST switch is required for dual-supply applications. Consider the 250Ω on-resistance limit for signal integrity in high-impedance circuits. Evaluate the ±1V to ±6V operating range against available power rails. Compare leakage currents and switching speeds against alternative switches if signal fidelity is critical.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX4503/MAX4504 family of low-voltage CMOS analog switches. The MAX4503 variant specifically provides a Normally Open configuration, whereas the MAX4504 offers a Normally Closed option. Both share identical pinouts and electrical characteristics except for the default switch state. The CUK suffix indicates the SOT23-5 surface-mount package with an industrial temperature range.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX4501 and MAX4502 are pin-for-pin equivalents designed for single-supply operation instead of dual supplies. Verify that the application circuit supports the single-supply voltage requirements of these alternatives. Ensure the replacement maintains the same SPST configuration and package type if board space is constrained.