Analog Devices Inc./Maxim Integrated MAX339ETE+

Overview

MAX339ETE+ from Maxim Integrated is a dual 4-channel CMOS analog multiplexer designed to route one of four bidirectional analog inputs per section (NO1A–NO4A and NO1B–NO4B) to respective common outputs (COMA, COMB) using 2-bit binary address control (A0, A1) and an enable input (EN). It features 400Ω max on-resistance, <20pA NO-off leakage at +25°C, 1.5pC typical charge injection, and operates from ±4.5V to ±20V or +4.5V to +30V supplies. It is used in precision data-acquisition systems requiring low signal distortion and rail-to-rail analog handling.

For engineers reviewing the MAX339ETE+ datasheet, MAX339ETE+ pinout, MAX339ETE+ application, or MAX339ETE+ equivalent, key selection criteria include guaranteed low leakage across temperature, TTL/CMOS-compatible control logic, ESD protection >2000V, dual- or single-supply flexibility, and compatibility with military-grade guidance and test equipment signal routing requirements.

Technical Context

The MAX339ETE+ implements a fully decoded CMOS switch matrix with independent A0/A1 address logic for each 4-channel section, enabling simultaneous or separate channel selection. Its silicon-gate 44V process ensures robust operation across ±20V bipolar or +30V single supplies, with rail-to-rail analog signal handling (±15V range under dual supply).

All digital inputs (EN, A0, A1) are TTL/CMOS-compatible over full temperature range (–40°C to +85°C) and supply voltages (±4.5V to ±18V), and internal clamping diodes protect NO/COM pins against overvoltage up to (V− − 2V) to (V+ + 2V), with 30mA continuous current rating per terminal.

Key Specifications

Pinout & Package

The MAX339ETE+ is housed in a 16-pin TQFN-EP package (5mm × 5mm) with exposed pad connected to V+. This thermally enhanced RoHS-compliant package supports high-density PCB layouts and improved power dissipation (1666.7mW at TA = +70°C).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual 4-channel analog multiplexer applications.

Compared with MAX329ESE+, the MAX339ETE+ trades higher on-resistance tolerance for superior speed and drive capability; compared with DG509AQ, it delivers verified ESD protection, tighter leakage specs, and guaranteed charge injection - making it the preferred choice for mission-critical industrial and defense signal routing.

Availability

MAX339ETE+ is available at Aetrix Electronics and suitable for data-acquisition systems, test equipment, and guidance and control systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for MAX339ETE+ 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, automotive, and communications markets.

The MAX338/MAX339 product line was engineered for precision analog signal routing in demanding environments - emphasizing ultra-low leakage, rail-to-rail operation, and robust ESD tolerance for military, aerospace, and automated test applications.

FAQ

What is the maximum allowable supply voltage difference for MAX339ETE+?

The MAX339ETE+ specifies an absolute maximum V+ − V− differential of 44V. This allows operation with unbalanced supplies such as +24V and −5V (29V total), provided neither rail exceeds its individual absolute max rating (V+ ≤ +30V, V− ≥ −20V). Exceeding 44V risks permanent damage per the Absolute Maximum Ratings table.

Does MAX339ETE+ support single-supply operation, and how is V− configured?

Yes, MAX339ETE+ supports single-supply operation from +4.5V to +30V. In this mode, connect V− to GND (not left floating), and ensure all analog signals remain within 0V to V+ rails. The device maintains rail-to-rail signal handling, low leakage, and TTL-compatible logic thresholds - confirmed in Electrical Characteristics-Single Supply section.

Is the exposed pad on MAX339ETE+ electrically functional, and how must it be connected?

Yes, the exposed pad on MAX339ETE+ is electrically tied to V+ and must be soldered to a V+ copper pour on the PCB. This connection is mandatory for thermal performance (derating: 20.8mW/°C above +70°C), ESD current shunting, and electrical stability. Leaving it unconnected violates the recommended land pattern and risks overheating or ESD failure.

How does MAX339ETE+ handle overvoltage on analog inputs (NO/COM pins)?

MAX339ETE+ includes internal clamping diodes on NO, COM, EN, A0, and A1 pins. These diodes limit input voltage to (V− − 2V) to (V+ + 2V). To avoid forward conduction beyond 30mA, external series resistors must be used if transient overvoltage exceeds these bounds - per Applications Information section on Overvoltage Protection.

Can MAX339ETE+ be used as a demultiplexer, and what design considerations apply?

Yes, MAX339ETE+ functions bidirectionally and can operate as a demultiplexer: apply a common analog signal to COMA/COMB and route it to selected NOx outputs using address/enable control. Key considerations include ensuring load impedance ≥ 1kΩ to maintain specified RON and leakage, and verifying that output capacitance (e.g., NOx-to-GND) remains ≤ 100pF to preserve transition time and charge injection performance.