MAX4543ESA

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4543ESA+ 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) switch, allowing SPST or SPDT configurations. Key electrical parameters include a maximum on-resistance of 60Ω, 2Ω maximum channel-to-channel matching, and 6Ω maximum flatness at +5V. The device guarantees fast switching with turn-on times up to 100ns and turn-off times up to 75ns. Supply current is typically 1µA, resulting in low power consumption of approximately 5µW. Leakage currents are specified at 100pA maximum, and the component offers over 2000V ESD protection.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• TTL/CMOS-logic compatible inputs
• Guaranteed break-before-make timing
• Low charge injection performance

Analog Switches, Multiplexers, Demultiplexers Applications

• Battery-operated systems
• Sample-and-hold circuits
• Audio and video switching
• +3V/+5V DACs and ADCs

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the suffix 'E' indicates an industrial temperature range of -40°C to +85°C. Confirm the 'SA' designation corresponds to the narrow SOIC-8 package. Ensure the '+' suffix confirms compliance with RoHS standards. Cross-reference the manufacturer's part number against authorized distributor listings to validate authenticity before procurement.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this model when a mixed NO/NC configuration is required within a dual-switch architecture. The +2.7V minimum supply voltage supports low-voltage battery applications. Verify that the 60Ω maximum on-resistance meets the signal integrity requirements of the target circuit design.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component 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 NO and one NC switch. This specific configuration enables flexible routing between active and inactive signal paths.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX4542ESA+ serves as a functional substitute if both switches require a normally closed state. The MAX4541ESA+ is suitable if both switches require a normally open state. These alternatives share identical pinouts and electrical characteristics but differ in internal switch logic states.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the difference between the MAX4543 and MAX4544?

The MAX4543 contains one normally open and one normally closed switch, whereas the MAX4544 contains two normally open switches configured as a single-pole double-throw (SPDT) device.

Does the MAX4543 support break-before-make switching?

Yes, the MAX4543 guarantees break-before-make timing, ensuring the old connection opens before the new connection closes.

How does the MAX4543 handle TTL logic levels?

The device is TTL/CMOS-logic compatible. When powered from a +5V supply, it accepts standard TTL input voltages, though rail-to-rail driving is recommended for optimal performance.