MAX339ESE

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX339ESE+ is a dual, 4-channel CMOS analog multiplexer housed in a 16-pin Narrow SOIC package. It connects one of four inputs to a common output using a 2-bit binary address. The device operates from single supplies of +4.5V to +30V or dual supplies of ±4.5V to ±20V. Key electrical specifications include a maximum on-resistance of 400Ω at +25°C and 500Ω across the full temperature range. Leakage currents are extremely low, with off-leakage less than 20pA at +25°C. The transition time is 500ns maximum, and charge injection is typically 1.5pC.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Dual 4:1 multiplexer architecture supporting bidirectional signal flow
• TTL-compatible control inputs for direct microprocessor interfacing
• High electrostatic discharge protection exceeding 2000V per Method 3015.7
• Pin-compatible replacement for industry-standard DG508A/DG509A devices

Analog Switches, Multiplexers, Demultiplexers Applications

• Data-acquisition systems
• Test equipment
• Military radios
• Guidance and control systems
• Sample-and-hold circuits

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix against the manufacturer's current ordering guide to confirm lead-free status and exact package dimensions. Confirm that the narrow SOIC footprint matches the target PCB land pattern. Ensure supply voltage sequencing adheres to absolute maximum ratings to prevent latch-up during power-up.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when low leakage and high isolation are critical requirements. Verify that the 400Ω on-resistance meets the signal integrity needs of the application. Consider the MAX329 if lower leakage is required despite higher resistance. Ensure the operating temperature range aligns with the system environment.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX338/MAX339 family of low-leakage CMOS analog multiplexers. It serves as an upgraded alternative to older DG series switches, offering improved leakage characteristics while maintaining pin compatibility. The family includes variants with different temperature ranges and package options.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX339ESE+ is a direct pin-compatible upgrade for the DG509A. For applications requiring lower leakage but accepting higher on-resistance, the MAX329 is a suitable alternative within the same product family.

Analog Switches, Multiplexers, Demultiplexers FAQ

How does the MAX339 handle overvoltage conditions?

Signals on NO, COM, EN, A0, A1, or A2 exceeding V+ or V- are clamped by internal diodes. Forward current must be limited to the maximum rating of 30mA.

What is the break-before-make interval?

The break-before-make interval is guaranteed to be between 10ns and 140ns at +25°C, ensuring no overlap between switching channels.

Are the control inputs compatible with standard logic levels?

Yes, all control inputs are TTL compatible (+0.8V to +2.4V) over the full specified temperature range and supply voltages.