Analog Devices Inc./Maxim Integrated MAX339CPE

Overview

MAX339CPE from Maxim Integrated is a dual 4-channel CMOS analog multiplexer designed to route one of four inputs to each of two independent common outputs (COMA/COMB) under 2-bit binary address control (A0/A1). It features ≤400Ω on-resistance, <20pA off-leakage at +25°C, and 1.5pC typical charge injection-enabling precision signal routing in data-acquisition and sample-and-hold circuits operating from ±4.5V to ±20V or +4.5V to +30V supplies.

For engineers reviewing the MAX339CPE datasheet, MAX339CPE pinout, MAX339CPE application, or MAX339CPE equivalent, this page delivers verified electrical parameters, validated dual-4-channel switching behavior, TTL/CMOS-compatible enable/address logic, rail-to-rail analog signal handling (±10V), and confirmed drop-in compatibility with DG509A in 16-pin PDIP packaging.

Technical Context

The MAX339CPE implements fully bidirectional, CMOS-based analog switching using Maxim's 44V silicon-gate process. Its internal decode logic accepts A0/A1 address bits and EN enable to independently select channels for COMA and COMB outputs, supporting both multiplexing and demultiplexing configurations without polarity constraints.

Each switch exhibits matched on-resistance (<10Ω channel-to-channel variation), low capacitive coupling (CNO(OFF) = 3pF, CCOM(OFF) = 6pF), and guaranteed break-before-make timing (140ns min) to prevent signal shorting during channel transitions-critical for high-fidelity sampling in test equipment and military radios.

Key Specifications

Pinout & Package

The MAX339CPE is supplied in a 16-pin plastic DIP (dual in-line package) with 0.3-inch body width, through-hole mounting, and industry-standard pin spacing (0.1 inch). Pin 1 is marked by a notch or dot; exposed substrate is internally tied to V+.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DG509A, MAX339CPE delivers superior leakage, charge injection, and ESD performance in identical PDIP packaging; versus MAX329CPE, it trades slightly higher leakage for significantly lower on-resistance and broader supply flexibility-making it optimal for general-purpose precision multiplexing.

Availability

MAX339CPE is available at Aetrix Electronics and suitable for data-acquisition systems, sample-and-hold circuits, and military radio designs requiring stable component supply, long-term obsolescence management, and traceable sourcing from authorized channels.

Supply support for MAX339CPE 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 semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and automotive markets.

The MAX339CPE belongs to Maxim's precision analog multiplexer product line, engineered for low-leakage, low-charge-injection signal routing in demanding measurement and control applications where signal integrity and reliability are critical.

FAQ

What is the maximum analog signal voltage range supported by the MAX339CPE?

The MAX339CPE supports analog signals from V− to V+ - up to ±10V with ±15V supplies or 0V to +12V with +12V single supply. This rail-to-rail capability eliminates level-shifting circuitry. The absolute maximum analog voltage is limited by the supply rails: signals must remain within (V− − 2V) to (V+ + 2V) to avoid clamping diode conduction. For MAX339CPE operating at ±15V, the safe analog range is ±13V.

Is the MAX339CPE pin-compatible with the DG509A?

Yes, the MAX339CPE is a pin-compatible upgrade for the DG509A in 16-pin PDIP packaging. All pins - including A0/A1 address inputs, EN enable, NO1A–NO4A/NO1B–NO4B analog inputs, COMA/COMB outputs, V+, V−, and GND - occupy identical positions. No PCB layout changes are required when replacing DG509A with MAX339CPE, though improved performance (lower leakage, lower charge injection, higher ESD rating) is immediately realized.

Does the MAX339CPE support single-supply operation?

Yes, the MAX339CPE operates from a single +4.5V to +30V supply. To configure for single-supply use, connect V− to GND and apply the positive supply to V+. Logic inputs (A0, A1, EN) remain TTL/CMOS-compatible across the full temperature range. Analog signals can swing from 0V to V+, enabling seamless integration into microcontroller-based systems without dual-rail power supplies.

What is the significance of the 'C' in MAX339CPE?

The 'C' in MAX339CPE denotes the commercial temperature grade (0°C to +70°C), while 'P' indicates 16-pin plastic DIP packaging and 'E' specifies lead-free (Pb-free) construction. This variant is intended for non-extended-environment applications such as lab equipment, industrial controllers, and commercial test instruments where ambient temperatures remain within standard office or factory ranges.

How does the enable (EN) pin function on the MAX339CPE?

The EN pin is an active-high digital input that globally enables or disables both 4-channel multiplexer sections. When EN = low (≤0.8V), all analog switches open regardless of address inputs - isolating NOx terminals from COMA/COMB outputs. When EN = high (≥2.4V), channel selection proceeds normally via A0/A1. This allows synchronous gating of signal paths in time-critical applications like burst-mode data capture or power-saving sleep modes.