Analog Devices Inc./Maxim Integrated MAX4226EUB+T

Overview

MAX4226EUB+T from Maxim Integrated is a dual-channel, low-power, current-feedback amplifier optimized for closed-loop gain ≥ +1 (0 dB), delivering 1 GHz -3dB bandwidth, 1100 V/µs slew rate, and 0.01% differential gain error - ideal for high-fidelity video line drivers and ADC input buffering in professional broadcast equipment.

For engineers reviewing the MAX4226EUB+T datasheet, MAX4226EUB+T pinout, MAX4226EUB+T application, or MAX4226EUB+T equivalent, this page provides verified pin functions, real-world video and data-communications use cases, confirmed shutdown behavior (350 µA, 100 kΩ output impedance), and two validated alternative parts with documented functional trade-offs.

Technical Context

The MAX4226EUB+T implements a current-feedback topology with transimpedance gain stage, enabling gain-bandwidth independence at low gains and supporting stable operation at +1V/V with RF = 560 Ω. Its dual-amplifier architecture shares a common shutdown control (SHDN) but features independent IN+/IN−/OUT pins per channel.

It operates from ±2.85V to ±5.5V dual supplies, delivers ±2.5V output swing into 50 Ω, and maintains 0.1 dB gain flatness to 300 MHz - critical for SD/HD video signal integrity. Shutdown mode disables both amplifiers simultaneously, reducing supply current to 350 µA and raising output impedance to 100 kΩ typical.

Key Specifications

Pinout & Package

MAX4226EUB+T is housed in a 10-pin µMAX package (3.0 mm × 3.0 mm, 0.8 mm height), thermally enhanced with exposed paddle. Pin numbering follows standard µMAX top-view convention.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar current-feedback amplifier applications.

Compared with MAX4226EUB+T, MAX4225EUB+T offers identical AC specs in half the channel count and no power control, while LMH6723MA/NOPB trades shutdown and dual-channel integration for higher raw speed and wider supply range - making MAX4226EUB+T optimal for space-constrained, low-power, dual-video-path systems.

Availability

MAX4226EUB+T is available at Aetrix Electronics and suitable for professional video cameras, broadcast infrastructure, and high-speed data acquisition systems requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for MAX4226EUB+T 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 MAX4223–MAX4228 family was engineered specifically for high-fidelity video signal conditioning and wideband data communications, emphasizing low distortion, fast settling, and low-power shutdown in compact packages.

FAQ

What is the operating supply voltage range for MAX4226EUB+T?

The MAX4226EUB+T operates from dual supplies ranging from ±2.85V to ±5.5V. It is fully specified across this range, with typical performance measured at ±5V. Operation outside these limits risks permanent damage, as absolute maximum supply voltage is ±6V (12V total). The device maintains 0.01% differential gain error and 1 GHz bandwidth across the full specified supply range.

Does MAX4226EUB+T support unity-gain stable operation?

Yes, MAX4226EUB+T is optimized for closed-loop gains of +1 (0 dB) or greater and is unity-gain stable. Its current-feedback architecture ensures stable operation with RF = 560 Ω and RG open (for AV = +1), delivering 1 GHz -3dB bandwidth and 0.1 dB gain flatness to 300 MHz. This makes MAX4226EUB+T suitable for video line drivers and ADC buffers requiring minimal gain.

How does the shutdown feature work on MAX4226EUB+T?

The MAX4226EUB+T enters low-power shutdown when the SHDN pin (Pin 4) is pulled to logic low (≤0.8 V). In this state, total supply current drops to 350 µA per amplifier (700 µA total), and both outputs go to high-impedance (~100 kΩ). Normal operation resumes within 100 ns of SHDN returning high. This behavior is confirmed in the datasheet's AC Electrical Characteristics table under "Shutdown Mode Output Impedance" and "ISY".

Can MAX4226EUB+T drive 75 Ω back-terminated video lines?

Yes, MAX4226EUB+T is explicitly characterized to drive up to four back-terminated 75 Ω loads to ±2.5 V while maintaining excellent differential gain/phase performance. Its 80 mA output current capability and robust output stage ensure signal integrity across full HD (1080p60) bandwidths. This capability is documented in the General Description section and confirmed in the "High Output Drive Capability" feature list.

What is the thermal performance of the µMAX package used by MAX4226EUB+T?

The MAX4226EUB+T uses a 10-pin µMAX package with an exposed thermal paddle. At TA = +70°C, its continuous power dissipation is rated at 444 mW, with a derating factor of 5.6 mW/°C above +70°C. This package enables efficient heat transfer to the PCB ground plane, supporting reliable operation in compact video enclosures and dense datacom modules without forced airflow.