MAX4561EUT-T

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4561EUT+T is a single-pole/double-throw (SPDT) CMOS analog switch in a 6-pin SOT23 package. It operates from a single +1.8V to +12V supply with an on-resistance of 70Ω at +5V and 120Ω at +3V. The device features ±15kV ESD protection on NO/NC terminals, off-leakage current of 0.5nA at +25°C, and turn-on/turn-off times of 150ns/80ns at +5V. It supports Rail-to-Rail signals, TTL/CMOS logic compatibility, and guaranteed break-before-make switching.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Integrated ±15kV ESD protection on signal terminals using bidirectional SCRs
• Rail-to-Rail analog signal handling capability across the full supply range
• Guaranteed low on-resistance flatness for consistent signal transmission
• Logic-compatible inputs ensuring direct interface with standard digital systems

Analog Switches, Multiplexers, Demultiplexers Applications

• High-ESD environments requiring robust terminal protection
• Battery-powered systems utilizing low-voltage single-supply operation
• Audio and video signal routing applications
• Low-voltage data-acquisition systems
• Sample-and-hold circuits

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the ordering suffix '+T' corresponds to tape-and-reel packaging when sourcing components. Confirm that the 'E' designation indicates the extended temperature range of -40°C to +85°C. Ensure the component meets RoHS compliance requirements as indicated by the '+' symbol in the part number.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this SPDT configuration over SPST variants (MAX4568/MAX4569) when dual-path signal routing is required. Consider the 70Ω on-resistance at +5V for impedance matching needs. Verify that the system's ESD events remain within the ±15kV Human Body Model limits to prevent SCR latch-up during normal operation.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the MAX4561/MAX4568/MAX4569 family of low-voltage analog switches. It shares pinout compatibility with the MAX4544 series, facilitating design upgrades. The device utilizes CMOS technology to achieve low power consumption while maintaining high-speed switching characteristics suitable for portable electronics.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX4561 is pin-compatible with the MAX4544. Designers may consider these alternatives if specific parameter variations are acceptable, though functional equivalence should be verified against the original datasheet specifications.

Analog Switches, Multiplexers, Demultiplexers FAQ

How does the device handle ESD events exceeding the holding current?

If the current through the internal SCRs exceeds the holding current (typically 110mA at room temperature), the SCR remains latched until the current drops below this threshold. System sources must be current-limited to ensure the SCR turns off after the event.

What is the maximum operating voltage for this switch?

The MAX4561 operates from a single supply ranging from +1.8V to +12V. The absolute maximum rating for V+ is +13V referenced to GND.

Does the MAX4561 support simultaneous make-before-break switching?

No, the MAX4561 guarantees a break-before-make delay of 5ns to 50ns (at +5V). This prevents shorting between the NO and NC terminals during switching transitions.