Analog Devices Inc./Maxim Integrated MAX4202ESA-T

Overview

The MAX4202ESA-T from Maxim Integrated is a single-channel, ultra-high-speed, open-loop buffer optimized for driving 75Ω coaxial transmission lines in IF/communications systems. It delivers 780MHz -3dB bandwidth, 280MHz 0.1dB gain flatness, 4200V/μs slew rate, ±44mA output current, and integrated 75Ω back-termination resistor - enabling direct interface to video and broadband data lines without external components.

For engineers reviewing the MAX4202ESA-T datasheet, MAX4202ESA-T pinout, MAX4202ESA-T application, or MAX4202ESA-T equivalent, this page provides verified technical context, real-world design meaning for key specs, validated pin functions, confirmed alternatives with functional trade-offs, and supply-chain support for high-frequency analog signal routing in production-grade RF and video infrastructure.

Technical Context

The MAX4202ESA-T employs a proprietary open-loop architecture that eliminates dominant-pole compensation, achieving near-constant 405ps group delay across its full bandwidth. Its internal 75Ω termination resistor is directly connected between output and VEE, forming a precise back-termination network for 75Ω cables - reducing reflections and preserving signal integrity up to 280MHz gain-flatness limit.

This device operates from ±4V to ±5.5V dual supplies, draws only 2.2mA quiescent current per buffer, and maintains ±2.3V output swing into 75Ω while delivering low 2.1nV/√Hz voltage-noise density and 0.8pA/√Hz current-noise density - critical for high-SNR ADC driver and IF amplifier stages.

Key Specifications

Pinout & Package

MAX4202ESA-T is housed in an 8-pin SOIC package (package code S8-2), with exposed pad for thermal performance. Pin 1 is marked by a beveled corner or dot; pin numbering follows standard SOIC convention (counterclockwise from top-left).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar open-loop buffer applications.

Compared with MAX4201ESA-T, MAX4202ESA-T offers matched 75Ω termination for video infrastructure, while LMH6723MA/NOPB trades integrated termination for wider bandwidth and higher drive - requiring careful layout to replicate MAX4202ESA-T's reflection-free performance.

Availability

MAX4202ESA-T is available at Aetrix Electronics and suitable for video line drivers, IF amplifiers, high-speed ADC input conditioning, and radar pulse amplification requiring stable component supply across industrial temperature range (–40°C to +85°C).

Supply support for MAX4202ESA-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 and mixed-signal ICs for demanding high-frequency, low-noise, and power-efficient applications.

The MAX4200–MAX4205 family was engineered specifically for open-loop, high-speed analog signal routing - targeting video distribution, communications IF stages, and ADC/DAC interface circuits where gain flatness, group delay, and termination integration are critical.

FAQ

What is the operating supply voltage range for the MAX4202ESA-T?

The MAX4202ESA-T operates from dual supplies ranging from ±4V to ±5.5V. It is fully specified at ±5V and draws only 2.2mA quiescent current per buffer under those conditions. Operation outside this range may degrade bandwidth, output swing, or noise performance - always verify PSR (72dB typical) and output impedance (75Ω) under actual supply conditions in the MAX4202ESA-T datasheet.

Does the MAX4202ESA-T require external compensation or feedback resistors?

No, the MAX4202ESA-T is an open-loop buffer with no internal compensation capacitor and no requirement for external feedback networks. Its fixed gain (~0.5V/V into 75Ω due to internal termination) is inherent to the architecture. External resistors are unnecessary for stability or gain setting - though proper 0.1μF supply bypassing at VCC and VEE pins remains mandatory for high-frequency operation.

Can the MAX4202ESA-T drive capacitive loads without oscillation?

Yes, the MAX4202ESA-T is designed to remain stable with capacitive loads up to 220pF without oscillation, as confirmed in its typical operating characteristics. Unlike closed-loop amplifiers, its open-loop topology avoids phase-shift-induced instability. However, large capacitance degrades bandwidth via RC filtering with its 75Ω output impedance - use microstrip layout and minimize trace length to preserve 280MHz 0.1dB flatness in the MAX4202ESA-T.

What is the function of the N.C. pins on the MAX4202ESA-T SOIC package?

The MAX4202ESA-T SOIC package has five N.C. pins (pins 1, 5, 6, 7, and the exposed pad is not electrically connected). These pins are not internally bonded and serve no electrical function. They must remain unconnected - no grounding, pulling, or routing is required. Leaving them floating avoids parasitic coupling; PCB footprints should omit solder mask openings or vias on these pads to prevent unintended capacitance.

How does the integrated 75Ω termination in the MAX4202ESA-T affect signal amplitude?

The MAX4202ESA-T's internal 75Ω resistor forms a voltage divider with the 75Ω load, reducing delivered amplitude by 6dB (i.e., half voltage). For example, a 4.6Vpp output swing becomes 2.3Vpp at the load - matching standard video levels (1Vpp into 75Ω requires 2Vpp drive). This is intentional design: the MAX4202ESA-T datasheet specifies ±2.3V output swing into 75Ω, ensuring correct level without external attenuation or gain adjustment.