MAX4543EKA+T

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4543EKA+T is a precision, dual analog switch designed for single +2.7V to +12V supply operation. It features one normally open (NO) and one normally closed (NC) SPST channel, enabling SPDT functionality. The device offers a maximum on-resistance of 60Ω with 2Ω matching between channels and 6Ω flatness. Key electrical parameters include a maximum charge injection of 5pC, low leakage currents of 100pA, and fast switching speeds with turn-on times up to 100ns and turn-off times up to 75ns at +5V. It operates within a temperature range of -40°C to +85°C in an SOT-23-8 package.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Provides mixed signal routing through one normally open and one normally closed analog switch channel.
• Ensures signal integrity with guaranteed break-before-make timing to prevent short circuits during switching.
• Maintains low power consumption suitable for battery-powered applications while supporting rail-to-rail logic inputs.

Analog Switches, Multiplexers, Demultiplexers Applications

• Battery-operated systems requiring low power dissipation
• Sample-and-hold circuits for data acquisition
• Audio and video signal switching paths

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the component authenticity by checking the top marking AAAG against the datasheet ordering information. Confirm the suffix T indicates reel packaging. Ensure the EKA designation matches the SOT-23-8 package type required for the design. Cross-reference the manufacturer part number with official Analog Devices documentation to avoid counterfeit components.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when mixed NO/NC switching is required within a dual-channel configuration. Compare the 60Ω on-resistance against load requirements to ensure acceptable voltage drop. Verify that the 2.7V minimum supply voltage aligns with the system power rails. Consider the SOT-23-8 footprint constraints during PCB layout planning.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX4541–MAX4544 family of low-voltage, single-supply analog switches. While the MAX4541 provides two NO switches and the MAX4542 provides two NC switches, the MAX4543 specifically combines one of each. This configuration allows flexible signal path management without requiring external mechanical relays or additional discrete components.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX4541EKA+T and MAX4542EKA+T are pin-compatible alternatives within the same series. Substitution requires verifying if the specific NO/NC combination of the MAX4543 is necessary or if all NO or all NC switches suffice for the application circuit.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the specific switch configuration of the MAX4543?

The MAX4543 contains one normally open (NO) switch and one normally closed (NC) switch, allowing it to function as a single-pole double-throw (SPDT) device.

Does the MAX4543 support break-before-make switching?

Yes, the MAX4543 guarantees break-before-make timing to prevent both switches from being on simultaneously during state transitions.

What is the maximum operating supply voltage?

The device is designed to operate from a single supply ranging from +2.7V to +12V.