Analog Devices Inc./Maxim Integrated MAX4314EEE

Overview

The MAX4314EEE from Maxim Integrated is a 4-channel, fixed-gain (+2V/V) video multiplexer-amplifier optimized for back-terminated 75Ω cable driving in broadcast and multimedia systems. It delivers 127MHz -3dB bandwidth, 430V/µs slew rate, 40ns channel switching time, and ultra-low 10mV_p-p switching transients while operating from a single +4V to +10.5V supply.

For engineers reviewing the MAX4314EEE datasheet, MAX4314EEE pinout, MAX4314EEE application, or MAX4314EEE equivalent, key selection criteria include its fixed +2V/V gain architecture, rail-to-rail output swing into 150Ω, differential gain/phase error of 0.09%/0.03°, and QSOP-16 package compatibility with high-density video routing layouts.

Technical Context

The MAX4314EEE integrates a 4-input analog multiplexer with an internally compensated +2V/V voltage-feedback amplifier using thin-film 500Ω feedback resistors. Its architecture targets low-glitch video switching with constant 1pF input capacitance across on/off states and open-loop output impedance of only 0.025Ω.

It supports single-supply operation (4V–10.5V) or dual supplies (±2V–±5.25V), features rail-to-rail outputs that swing within 730mV of V_CC and 30mV above V_EE into 150Ω, and includes a logic-controlled shutdown mode reducing supply current to 560µA while placing outputs in high-impedance state.

Key Specifications

Pinout & Package

The MAX4314EEE is housed in a 16-pin QSOP package with exposed pad for thermal enhancement and standard 0.65mm lead pitch. Pin 1 is marked by a dot; pin numbering follows counterclockwise convention from the index corner.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar video multiplexer-amplifier applications.

Compared with MAX4314ESD and THS7354IPW, the MAX4314EEE offers superior bandwidth (127MHz vs. 100MHz), lower power (6.9mA vs. 12mA), and QSOP-16 packaging optimized for high-density video routing-making it the preferred choice for broadcast-qualified, space-constrained designs.

Availability

The MAX4314EEE is available at Aetrix Electronics and suitable for video signal multiplexing, broadcast video routing, 75Ω cable driving, and multimedia product development requiring stable component supply across industrial temperature ranges (-40°C to +85°C).

Supply support for MAX4314EEE 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 demanding applications.

The MAX4310–MAX4315 family was designed specifically for high-fidelity, low-glitch video signal routing in broadcast, medical imaging, and professional AV equipment-emphasizing differential gain/phase accuracy, rail-to-rail drive capability, and robust multiplexer timing.

FAQ

What is the operating supply voltage range for the MAX4314EEE?

The MAX4314EEE operates from a single +4V to +10.5V supply or dual ±2V to ±5.25V supplies. This wide range supports both portable battery-powered video gear and fixed-line studio equipment. The device maintains specified performance-including 127MHz bandwidth and 0.09% differential gain error-across the full voltage range, with no derating required at minimum or maximum supply conditions. Internal biasing remains stable, ensuring consistent channel matching and switching behavior.

Does the MAX4314EEE require external gain-setting resistors?

No, the MAX4314EEE does not require external gain-setting resistors. It features an internally trimmed +2V/V fixed-gain amplifier using matched 500Ω thin-film resistors. This eliminates external feedback components, reduces PCB area, improves layout repeatability, and avoids parasitic-induced peaking or instability common with surface-mount resistor networks. The internal gain architecture is optimized for driving back-terminated 75Ω video cables without additional compensation.

How does the MAX4314EEE handle capacitive loads such as long coaxial cables?

The MAX4314EEE is designed for driving back-terminated 75Ω coaxial cables, which present a purely resistive load when properly terminated. For reactive or high-capacitance loads, its low 0.025Ω open-loop output impedance and internal compensation maintain stability. Layout best practices-such as using isolation resistors (e.g., 27Ω) close to the output pin and minimizing trace capacitance-preserve flat frequency response. The device's 127MHz bandwidth and 430V/µs slew rate ensure minimal phase shift and overshoot even under moderate capacitive loading.

What is the function of the N.C. pins on the MAX4314EEE QSOP package?

The MAX4314EEE has three N.C. (no-connect) pins-pins 10, 12, and 14-in its 16-pin QSOP package. These pins are electrically isolated from internal circuitry and serve mechanical and thermal purposes. They must be tied to the PCB ground plane to improve thermal conduction, reduce EMI susceptibility, and enhance mechanical stability during reflow soldering. Leaving them floating may degrade high-frequency performance and increase thermal resistance, potentially affecting long-term reliability in continuous video operation.

Can the MAX4314EEE be used in dual-supply configurations?

Yes, the MAX4314EEE supports dual-supply operation from ±2V to ±5.25V. In this mode, VCC connects to the positive rail (+VS), VEE connects to the negative rail (–VS), and GND serves as the reference. The input common-mode range extends to the negative rail, and rail-to-rail outputs swing within 730mV of each supply rail. Dual-supply use preserves all AC specifications-including 127MHz bandwidth and 40ns switching-while enabling bipolar signal handling in test equipment or instrumentation applications where ground-referenced video is not required.