Analog Devices Inc./Maxim Integrated MAX4313EUA

Overview

The MAX4313EUA from Maxim Integrated is a high-speed, single-supply 2-channel video multiplexer-amplifier with fixed +2V/V gain, 150MHz −3dB bandwidth, 540V/µs slew rate, and 40ns channel switching time. It features rail-to-rail output, input common-mode range extending to the negative rail, and ultra-low 10mV_p-p switching transients-optimized for 75Ω video cable driving in broadcast and multimedia systems.

For engineers reviewing the MAX4313EUA datasheet, MAX4313EUA pinout, MAX4313EUA application, or MAX4313EUA equivalent, key selection criteria include fixed-gain stability under back-terminated loads, differential gain/phase error (0.09%/0.03°), shutdown current (560µA), rail-to-rail swing into 150Ω, and µMAX-8 package compatibility with space-constrained video routing designs.

Technical Context

The MAX4313EUA integrates a 2:1 analog multiplexer with a voltage-feedback amplifier having internally trimmed 500Ω feedback resistors to fix gain at +2V/V. Its architecture enables stable driving of 75Ω coaxial cables without external gain-setting components while maintaining low distortion and flat frequency response up to 150MHz.

Channel selection is controlled via logic-level A0 input; SHDN enables low-power shutdown with 560µA supply current and high-impedance outputs. The device operates from +4V to +10.5V single supply (or ±2V to ±5.25V dual supply), with input common-mode range from VEE to VCC − 2.7V and rail-to-rail output swing within 730mV of either rail into 150Ω.

Key Specifications

Pinout & Package

Package: 8-pin µMAX (3mm × 3mm, 0.8mm height), RoHS-compliant, thermal pad exposed on bottom.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4310EUA and THS7314DR, the MAX4313EUA uniquely combines 2:1 multiplexing and fixed +2V/V amplification in a space-saving µMAX-8 package-reducing board area, component count, and inter-stage parasitics critical for high-fidelity video signal paths.

Availability

MAX4313EUA is available at Aetrix Electronics and suitable for video signal multiplexing, 75Ω cable driving, broadcast video distribution, and medical imaging signal routing requiring stable component supply, long-term manufacturability, and guaranteed traceable sourcing.

Supply support for MAX4313EUA 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) designs precision analog, mixed-signal, and power management ICs for demanding industrial, communications, and consumer applications.

The MAX4310–MAX4315 family was engineered specifically for high-fidelity, low-glitch video signal routing-addressing the need for integrated multiplexing, fixed-gain amplification, and rail-to-rail performance in compact packages for broadcast, medical, and multimedia systems.

FAQ

What is the operating supply voltage range for the MAX4313EUA?

The MAX4313EUA operates from a single +4V to +10.5V supply or dual ±2V to ±5.25V supplies. This wide range supports both standard 5V embedded systems and higher-voltage video processing rails. The device maintains specified performance-including 150MHz bandwidth and 0.09% differential gain error-across the full voltage range, enabling flexible power architecture design without signal integrity trade-offs. The MAX4313EUA's input common-mode range extends to the negative rail, simplifying interface with ground-referenced video sources.

Does the MAX4313EUA require external gain-setting resistors?

No, the MAX4313EUA 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, avoids resistor-induced noise and parasitic effects, and ensures consistent gain accuracy across temperature and process variations. The fixed gain is optimized for driving back-terminated 75Ω video cables, making the MAX4313EUA a complete, drop-in solution for standard video line driver applications without external tuning.

What is the maximum capacitive load the MAX4313EUA can drive stably?

The MAX4313EUA can drive up to 47pF capacitive load stably without external isolation resistors, as verified by small-signal gain flatness measurements. For larger loads (e.g., >47pF), an external series isolation resistor (R_ISO) is recommended-27Ω is typical for 90–120pF loads-to maintain phase margin and prevent peaking or oscillation. This behavior is documented in Figure 9 of the MAX4313EUA datasheet. Unlike general-purpose op-amps, the MAX4313EUA's internal compensation is optimized for 75Ω resistive loads, so reactive loading must be managed explicitly in layout or external network design.

How does the MAX4313EUA handle video signal switching transients?

The MAX4313EUA achieves ultra-low 10mV_p-p switching transients during channel selection-critical for artifact-free video switching. This performance results from low-charge-injection multiplexer design, matched input capacitance (2pF, constant on/off), and fast settling (25ns to 0.1%). In practice, this means no visible glitches, tearing, or brightness jumps when toggling between video sources in real-time applications like production switchers or multi-camera DVRs. The transient magnitude is measured under standard conditions (V_OUT = 1V_p-p, R_L = 150Ω), and remains consistent across temperature and supply voltage.

Is the MAX4313EUA pin-compatible with other devices in the MAX4310–MAX4315 family?

The MAX4313EUA shares the same 8-pin µMAX pinout with MAX4310EUA and MAX4313ESA (SO-8), enabling direct PCB footprint reuse across gain variants. However, it is not pin-compatible with 4- or 8-channel variants (e.g., MAX4314/MAX4315), which use 14- or 16-pin packages. Within the 2-channel group, pin functions are identical: A0, SHDN, VCC, IN0, IN1, OUT, GND, and N.C. This allows designers to migrate between adjustable-gain (MAX4310EUA) and fixed-gain (MAX4313EUA) versions without layout changes-provided the application benefits from the respective gain architecture and bandwidth trade-offs.