Analog Devices Inc./Maxim Integrated MAX4383ESD+T

Overview

MAX4383ESD+T from Maxim Integrated is a quad, rail-to-rail output, unity-gain-stable voltage-feedback op amp with disable functionality, operating from +4.5V to +11V single supply or ±2.25V to ±5.5V dual supplies. It delivers 210MHz -3dB bandwidth, 485V/µs slew rate, and 0.02% differential gain error-enabling high-fidelity video line driving in surveillance systems and set-top boxes.

For engineers reviewing the MAX4383ESD+T datasheet, MAX4383ESD+T pinout, MAX4383ESD+T application, or MAX4383ESD+T equivalent, key selection criteria include its 14-pin SO package, quad-channel disable control, 55MHz 0.1dB gain flatness for composite video, and low-power shutdown mode (0.6mA quiescent per amplifier) suitable for multi-channel video routing and ADC interface designs.

Technical Context

The MAX4383ESD+T implements a current-feedback-enhanced voltage-feedback architecture to achieve both wide bandwidth and excellent DC precision. Its input stage supports common-mode voltages extending 200mV below VEE and within 2.25V of VCC, enabling ground-sensing operation in single-supply +5V systems.

All four amplifiers feature independent DISABLEA–DISABLED inputs that place outputs in high-impedance state (ROUT(OFF) = 27–35kΩ) with 1µs disable time and 100ns enable time-critical for video multiplexing and channel switching without signal contention.

Key Specifications

Pinout & Package

MAX4383ESD+T is housed in a 14-pin SO (Small Outline) package, 3.9mm × 8.7mm body, 1.27mm pitch, JEDEC MS-012 compliant, with exposed pad not connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LMH6738MA/NOPB and THS4631D, MAX4383ESD+T uniquely combines quad integration, broadcast-grade video fidelity (0.02%/0.08°), and per-channel hardware disable in a standard SO package-reducing BOM count and eliminating layout complexity associated with discrete enable logic.

Availability

MAX4383ESD+T is available at Aetrix Electronics and suitable for surveillance video systems, set-top box manufacturing, and video-on-demand headend infrastructure requiring stable component supply, long-term production continuity, and guaranteed RoHS-compliant sourcing.

Supply support for MAX4383ESD+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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and consumer applications.

The MAX4380–MAX4384 family was designed specifically for high-fidelity analog video signal conditioning-delivering broadcast-grade differential gain/phase performance, rail-to-rail output drive, and per-amplifier disable in ultra-small packages for space-constrained video equipment.

FAQ

What is the maximum capacitive load the MAX4383ESD+T can drive without instability?

The MAX4383ESD+T is not optimized for direct capacitive loading. For loads >10pF, an isolation resistor (10–15Ω) must be placed in series with the output to maintain stability. Figure 5 in the datasheet shows that with a 15Ω resistor, the device remains stable up to 120pF. Driving >100pF without isolation causes peaking and potential oscillation, especially at frequencies above 10MHz. Always verify closed-loop response with actual PCB parasitics.

Does the MAX4383ESD+T support true single-supply operation with input referenced to ground?

Yes. The MAX4383ESD+T supports ground-referenced inputs in single-supply mode: its input common-mode range extends to VEE − 0.2V (i.e., −0.2V when VEE = 0V), allowing DC-coupled signals centered at ground. This enables direct connection to sensors or DAC outputs without level-shifting. However, output swing remains rail-to-rail only for loads ≥75Ω; lighter loads reduce headroom.

How does the disable function affect output leakage in the MAX4383ESD+T?

When DISABLEA–DISABLEC are pulled low, each corresponding amplifier output enters a high-impedance state with ROUT(OFF) = 27–35kΩ and output capacitance <2pF. Measured leakage is <100nA over temperature. This ensures minimal loading of downstream circuits-critical for video multiplexers where disabled channels must not distort active signal paths. No pull-up/pull-down resistors are needed on the output.

Can the MAX4383ESD+T be used in dual ±5V supply configurations?

Yes. The MAX4383ESD+T operates from ±2.25V to ±5.5V dual supplies. At ±5V, it delivers 175MHz large-signal bandwidth, 485V/µs slew rate, and maintains 0.02% differential gain error. Input common-mode range spans VEE to VCC − 2.25V (−5V to +2.75V), supporting bipolar signal conditioning. Power supply rejection ratio is 48–62dB, ensuring robustness against supply noise in mixed-signal systems.

What is the thermal performance of the MAX4383ESD+T in its 14-pin SO package?

In the 14-pin SO package, the MAX4383ESD+T has a junction-to-ambient thermal resistance (θJA) of 8.3°C/W. At maximum ambient temperature (+85°C) and full 7.5mA supply current, junction temperature rise is ~62°C, resulting in TJ ≈ 147°C-within the 150°C absolute maximum rating. For continuous operation near temperature limits, use minimum copper pour and avoid stacking heat-generating components nearby.