Analog Devices Inc./Maxim Integrated MAX339EGE

Overview

MAX339EGE from Maxim Integrated is a dual 4-channel CMOS analog multiplexer designed to route one of four analog inputs to a common output per section (COMA/COMB), controlled by 2-bit binary address inputs (A0, A1). It features 400Ω max on-resistance, <20pA off-leakage at +25°C, and 1.5pC typical charge injection-enabling precision signal routing in data-acquisition and test equipment operating from ±4.5V to ±20V or +4.5V to +30V supplies.

For engineers reviewing the MAX339EGE datasheet, MAX339EGE pinout, MAX339EGE application, or MAX339EGE equivalent, key selection criteria include bidirectional rail-to-rail signal handling, TTL/CMOS-compatible control logic, guaranteed break-before-make timing, low crosstalk (–92dB), and QFN-16 package suitability for space-constrained industrial and military-grade PCB layouts.

Technical Context

The MAX339EGE implements two independent 4:1 analog multiplexers using Maxim's 44V silicon-gate CMOS process, with fully decoded address logic enabling simultaneous channel selection per section. Each switch supports bidirectional current flow and operates across ±4.5V to ±20V dual supplies or +4.5V to +30V single supply (V− tied to GND).

It guarantees sub-500ns transition time, 750ns enable turn-on/off times, and maintains on-resistance matching ≤10Ω between channels-critical for gain-matched signal paths in sample-and-hold and instrumentation amplifier front-ends. ESD protection exceeds 2000V per Method 3015.7 without external components.

Key Specifications

Pinout & Package

MAX339EGE is housed in a 16-pin QFN package (3mm × 3mm, 0.5mm pitch) with exposed thermal pad. Pin 1 is EN (Enable), pins 2–5 are NO1A–NO4A, pins 6–7 are COMA/COMB, pins 8–11 are NO1B–NO4B, pin 12 is GND, pin 13 is V+, pin 14 is A1, pin 15 is A0, and pin 16 is V−. The package supports reflow soldering and provides low thermal resistance for stable operation at +85°C ambient.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog multiplexer applications.

Compared with DG509A, MAX339EGE delivers verified ESD robustness and tighter leakage specs in the same footprint; versus MAX329ESE, it trades lower on-resistance and wider supply range for slightly higher charge injection-making it optimal for general-purpose industrial multiplexing where drive capability and supply flexibility are prioritized.

Availability

MAX339EGE is available at Aetrix Electronics and suitable for data-acquisition systems, test equipment, and military radio subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX339EGE includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Maxim Integrated (now part of Analog Devices) is a fabless semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, automotive, and communications markets.

The MAX339EGE belongs to Maxim's precision analog multiplexer product line, engineered for low-leakage, low-charge-injection signal routing in mission-critical instrumentation and ruggedized electronic systems.

FAQ

What is the operating temperature range of the MAX339EGE?

The MAX339EGE is rated for operation from –40°C to +85°C, validated across all electrical parameters in this range. This extended industrial temperature grade makes it suitable for deployment in outdoor test equipment, avionics subsystems, and factory-floor automation controllers where ambient conditions exceed commercial limits. The QFN-16 package maintains thermal stability under sustained +85°C ambient load.

Does the MAX339EGE support single-supply operation?

Yes, the MAX339EGE supports single-supply operation from +4.5V to +30V. In this configuration, V− must be connected to GND, and analog signals swing from 0V to V+. All control inputs remain TTL/CMOS-compatible across the full supply range. The device retains its 400Ω max on-resistance and <20pA off-leakage specifications under single-supply conditions.

Is the MAX339EGE pin-compatible with the DG509A?

Yes, the MAX339EGE is a pin-compatible upgrade for the DG509A, sharing identical pin assignments for EN, A0, A1, COMA, COMB, NO1A–NO4A, NO1B–NO4B, V+, V−, and GND in the 16-pin SO and QFN packages. No PCB layout changes are required when migrating from DG509A to MAX339EGE, while gaining improved leakage, charge injection, and ESD performance.

What is the maximum analog signal voltage the MAX339EGE can handle?

The MAX339EGE supports analog signal voltages from V− to V+, with absolute maximum ratings of (V− – 2V) to (V+ + 2V) on NO and COM pins. When operated on ±15V supplies, it safely handles ±15V signals; on +12V/V− = GND, it handles 0V to +12V. Signal range scales linearly with supply rails-no internal clamping occurs within these bounds.

How does the break-before-make timing work in the MAX339EGE?

The MAX339EGE guarantees a minimum 140ns break-before-make interval during address transitions, preventing momentary shorting between channels. This timing is inherent to the internal decode logic and requires no external timing circuitry. It ensures safe switching in applications like relay replacement or redundant signal path selection where cross-conduction could cause system faults.