MAX339ETE+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX339ETE+ is a dual, 4-channel CMOS analog multiplexer housed in a 16-pin TQFN-EP (5mm x 5mm) package. It connects one of four inputs to a common output via 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 parameters include a maximum on-resistance of 400Ω at +25°C and 500Ω across the full temperature range. Off-leakage current is less than 20pA at +25°C, with charge injection typically at 1.5pC. Transition time is 500ns maximum.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Dual 4:1 multiplexing architecture controlled by 2-bit binary addressing
• Extremely low off-state leakage currents below 20pA at +25°C
• Guaranteed low charge injection for high signal integrity
• ESD protection exceeding 2000V per method 3015.7

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 ETE+ corresponds to the -40°C to +85°C temperature range and the 16-pin TQFN-EP package configuration. Confirm RoHS compliance status as indicated by the plus sign. Ensure the exposed pad connection requirements are met during assembly to maintain thermal and electrical performance specifications.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a dual 4-channel configuration is required rather than an 8-channel setup. It serves as a pin-compatible upgrade for industry-standard DG509A devices. Consider the 400Ω on-resistance limit against application voltage ranges. Verify that TTL-compatible logic levels meet interface requirements within the specified supply voltage constraints.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX338/MAX339 family of monolithic CMOS analog multiplexers. The MAX339 variant specifically provides two independent 4-to-1 channels. The ETE+ designation identifies the industrial temperature grade and surface-mount TQFN packaging. It is fabricated using Maxim’s 44V silicon-gate process technology.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX339ETE+ is a direct pin-compatible replacement for the DG509A. For applications requiring lower leakage but higher on-resistance, the MAX329 is an alternative. Other package options within the same family include MAX339EEE+ (QSOP) and MAX339ESE+ (Narrow SO).

Analog Switches, Multiplexers, Demultiplexers FAQ

How does the MAX339ETE+ 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 maximum ratings.

What is the recommended power-supply sequencing?

Sequence V+ on first, then V-, followed by the logic inputs NO and COM to prevent permanent damage.

Can the device operate with unbalanced supplies?

Yes, it can operate with unbalanced supplies such as +24V and -5V, provided the difference between V+ and V- does not exceed 44V.