Analog Devices Inc./Maxim Integrated MAX4180ESA

Overview

The MAX4180ESA from Maxim Integrated is a single-channel, current-feedback operational amplifier optimized for high-speed video signal conditioning with +2V/V minimum closed-loop gain. It delivers 240MHz small-signal bandwidth, 450V/µs slew rate, and 0.08%/0.03° differential gain/phase error at NTSC frequencies-enabling precision RGB or Y/C buffering in portable HD surveillance cameras and broadcast-grade video multiplexers.

For engineers reviewing the MAX4180ESA datasheet, MAX4180ESA pinout, MAX4180ESA application, or MAX4180ESA equivalent, this device is selected for low-power, high-fidelity analog video paths requiring fast settling (20ns to 0.1%), ultra-low distortion (–73dBc SFDR), and shutdown-enabled channel isolation in space-constrained SOT23-6 layouts.

Technical Context

The MAX4180ESA uses a current-feedback architecture with transresistance gain stage, enabling wide bandwidth independent of closed-loop gain-unlike voltage-feedback op-amps. Its internal compensation targets stable operation only at AV ≥ +2V/V, with feedback network design requiring matched RF and RG resistors (e.g., 1.2kΩ each) for optimal 0.1dB flatness up to 70MHz.

It integrates a CMOS-compatible shutdown input (SHDN) that places the output in high-impedance state and reduces quiescent current to 135µA. The amplifier operates from ±2.25V to ±5.5V dual supplies or +5V single supply, with rail-to-rail output swing capability into 150Ω loads (±3.75V).

Key Specifications

Pinout & Package

MAX4180ESA is housed in a 6-pin SOT23 surface-mount package with exposed pad for thermal performance. Pin 1 and Pin 5 are no-connect (N.C.) terminals; all other pins are electrically active and defined per Maxim's official pinout.

Key Features

Applications

Equivalent & Alternatives

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

Compared with THS3201DGN and LMH6720MF, the MAX4180ESA uniquely balances sub-1mA power, video-grade distortion performance, and integrated shutdown-making it the only option among the three qualified for portable, battery-operated, broadcast-compliant video signal chains.

Availability

MAX4180ESA is available at Aetrix Electronics and suitable for portable surveillance cameras, HD video multiplexers, and medical endoscope displays requiring stable component supply and long-term industrial availability.

Supply support for MAX4180ESA 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 industrial, medical, and communications applications.

The MAX4180ESA belongs to the MAX4180–MAX4187 family of current-feedback amplifiers engineered specifically for low-power, high-fidelity video signal routing-including RGB, Y/C, and component video paths in portable and professional systems.

FAQ

What is the minimum stable gain configuration for the MAX4180ESA?

The MAX4180ESA is internally compensated for stable operation only at closed-loop gains of +2V/V (6dB) or greater. Using it at unity gain (AV = +1V/V) risks oscillation due to insufficient phase margin. For +2V/V operation, standard feedback networks use matched RF = RG = 1.2kΩ with 1kΩ load, as validated in Maxim's datasheet Figure 1 and Table 1. This constraint is inherent to its current-feedback architecture and must be respected in all MAX4180ESA designs.

Does the MAX4180ESA support single-supply operation, and what are the input/output voltage limits?

Yes, the MAX4180ESA operates from a single +5V supply (VEE = GND). With VCC = +5V and VEE = 0V, the input common-mode range is 1.3V to 3.7V, and the output swings from 1.3V to 3.7V into 1kΩ (or 1.4V to 3.6V into 150Ω). This allows direct interfacing with 2.5V-referenced video DACs and 75Ω terminated lines without level-shifting circuitry-critical for compact HD video PCB layouts.

How does the shutdown feature of the MAX4180ESA behave electrically?

When SHDN ≤ (VCC – 3.0V), the MAX4180ESA enters shutdown: supply current drops to 135µA (typ), output impedance rises to >100MΩ (high-Z state), and disabled output leakage remains ±0.1µA (max). Turn-off time is 400ns; turn-on time is 40ns. This behavior is verified under RL = ∞ and RL = 150Ω loads per datasheet Sections "AC Electrical Characteristics" and "Typical Operating Characteristics."

What video standard compliance is documented for the MAX4180ESA?

The MAX4180ESA is explicitly characterized for NTSC video performance: 0.08% differential gain error and 0.03° differential phase error at RL = 150Ω, measured per EIA-770.1. It also achieves 70MHz 0.1dB bandwidth and <0.5dB peaking-meeting SMPTE 253M and ITU-R BT.601 requirements for component video fidelity. These values are measured and guaranteed across –40°C to +85°C, not estimated or simulated.

Can the MAX4180ESA drive a standard 75Ω video load directly?

Yes-the MAX4180ESA delivers ±32mA (min) into 30Ω and ±60mA (max) into 30Ω, enabling direct drive of 75Ω coaxial video lines with proper back-termination. When driving 75Ω, use RF = RG = 820Ω for +2V/V gain and place a 75Ω series resistor at the output to match line impedance and prevent reflections. This configuration is validated in datasheet Figures 12–14 and supports 1080i/p video without external buffers.