Analog Devices Inc./Maxim Integrated MAX4415EUA

Overview

MAX4415EUA from Maxim Integrated is a single, high-speed, rail-to-rail output operational amplifier optimized for closed-loop gains ≥ +5V/V, delivering 150MHz -3dB bandwidth and 470V/µs slew rate while consuming only 1.6mA supply current per amplifier on a +2.7V to +5.5V single supply. It features input common-mode range extending 100mV below ground and within 1.5V of VCC, low distortion (–79dBc SFDR at 5MHz, +3V), and differential gain/phase error of 0.05%/0.35° - ideal for video line drivers and baseband signal conditioning in portable communications.

For engineers reviewing the MAX4415EUA datasheet, MAX4415EUA pinout, MAX4415EUA application, or MAX4415EUA equivalent, this page provides verified technical context, package-specific pin mapping, real-world application use cases, and validated alternative options for low-power, high-speed analog signal paths requiring stable rail-to-rail performance at +3V/+5V.

Technical Context

The MAX4415EUA employs voltage-feedback architecture with internal compensation tailored for minimum closed-loop gain of +5V/V, enabling higher bandwidth and slew rate than unity-gain-stable variants (e.g., MAX4414). Its output stage uses demand-driven current bias and internal feedback to maintain low open-loop output impedance (<0.5Ω at 1MHz), ensuring consistent gain across varying loads.

It supports capacitive load driving up to 120pF without oscillation when properly isolated (e.g., 22Ω series resistor), and achieves <0.1dB flatness over 28MHz at AV = +5V/V. Input stage operates with 1.8pF capacitance and 16MΩ common-mode resistance, enabling stable operation with source impedances ≤1kΩ in high-frequency configurations.

Key Specifications

Pinout & Package

MAX4415EUA is housed in an 8-pin µMAX package (3mm × 3mm, 0.8mm height), thermally enhanced for high-speed operation in space-constrained portable designs. Pinout conforms to standard single-op-amp configuration with exposed pad for thermal dissipation (not electrically connected).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed, low-power op amp applications.

Compared with MAX4414EUA and ADA4891-1ARJZ-R7, the MAX4415EUA trades unity-gain stability for higher slew rate and bandwidth at +5V/V gain, making it optimal for fixed-gain, high-fidelity signal chains where layout-controlled feedback ensures stability - not a drop-in replacement but a purpose-fit solution for gain ≥5 applications.

Availability

MAX4415EUA is available at Aetrix Electronics and suitable for battery-powered instruments, portable communications baseband stages, and cellular telephone front-end circuits requiring stable component supply across industrial temperature ranges (–40°C to +85°C).

Supply support for MAX4415EUA 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, automotive, and communications applications.

The MAX4414–MAX4419 family was engineered specifically for low-voltage, high-speed signal conditioning in portable video, RF, and instrumentation systems - prioritizing rail-to-rail output swing, ultra-low power, and video-grade distortion performance in compact µMAX/SO packages.

FAQ

What is the minimum stable closed-loop gain for MAX4415EUA?

The MAX4415EUA is internally compensated for closed-loop gains of +5V/V or greater. Operating it at gains below +5V/V (e.g., unity gain or gain-of-2) risks instability, peaking, or oscillation due to insufficient phase margin. For unity-gain applications, use the pin-compatible MAX4414EUA instead. Always verify stability with actual PCB layout, especially when driving capacitive loads.

Can MAX4415EUA drive a 75Ω video load directly?

Yes - the MAX4415EUA delivers 0.05% differential gain and 0.35° differential phase error into a 150Ω load (standard test condition), and maintains stable operation into 75Ω with proper termination. Use a 22Ω series isolation resistor between OUT and the 75Ω load to suppress ringing and ensure flat frequency response up to 150MHz. Avoid direct connection without isolation for lengths >2 inches.

What is the maximum capacitive load MAX4415EUA can drive without oscillation?

The MAX4415EUA remains stable with up to 120pF of capacitive load directly at the output (no series resistor). Beyond that, oscillation risk increases significantly. For loads >120pF (e.g., long cables or LCD panels), a 22Ω isolation resistor is mandatory - enabling stable operation with up to 1000pF. Layout parasitics (e.g., >2pF trace capacitance) must be included in total CLOAD calculations.

Does MAX4415EUA support true single-supply operation with input signals at ground?

Yes - the MAX4415EUA's input common-mode range extends to VEE – 0.1V (i.e., –0.1V when VEE = GND), allowing ground-level and slightly negative inputs without phase reversal or latchup. This enables direct coupling of 0V-referenced sensors or AC signals centered at 0V, provided the output swing remains within rail-to-rail limits under load.

How does MAX4415EUA compare to MAX4414EUA in terms of power efficiency and bandwidth trade-offs?

The MAX4415EUA consumes identical quiescent current (1.6mA) as the MAX4414EUA but delivers higher slew rate (470V/µs vs. 200V/µs) and bandwidth (150MHz vs. 400MHz) at its intended gain-of-5 operating point. However, the MAX4414EUA achieves 400MHz bandwidth at unity gain - making it more efficient for low-gain, ultra-wideband applications, whereas the MAX4415EUA optimizes speed-per-watt specifically for fixed-gain ≥5 signal chains.