Analog Devices Inc. AD8023ARZ

Overview

AD8023ARZ from Analog Devices is a triple current-feedback video operational amplifier optimized for RGB and component video line driving. It delivers 70 mA output current per channel, 250 MHz unity-gain bandwidth, and 0.06% differential gain error-enabling high-fidelity analog video signal amplification in broadcast-grade LCD displays and computer video plug-in boards.

For engineers reviewing the AD8023ARZ datasheet, AD8023ARZ pinout, AD8023ARZ application, or AD8023ARZ equivalent, key selection criteria include capacitive load drive capability (up to 1000 pF), high-speed disable function (30 ns turn-off), rail-to-rail output swing (within 1 V of rails), and industrial temperature range (–40°C to +85°C).

Technical Context

The AD8023ARZ employs a current-feedback architecture with 75 Ω inverting input impedance and 100 kΩ noninverting input resistance, enabling stable closed-loop gains ≥1 using standard feedback resistor values. Its open-loop transresistance (67–111 kΩ) and low input capacitance (2 pF) support wideband operation up to 250 MHz while maintaining 0.1 dB gain flatness to 10 MHz.

Each of the three independent amplifiers integrates a dedicated disable pin with 1.6 V switching threshold referenced to –VS, delivering high off-isolation (–70 dB at 6 MHz) and 12 pF off-state output capacitance. The device operates on ±2.5 V to ±7.5 V dual supplies or +4.2 V to +15 V single supply, with quiescent current per amplifier ranging from 6.2 mA (typ) to 10.0 mA (max).

Key Specifications

Pinout & Package

AD8023ARZ is housed in a 14-lead plastic SOIC (R-14) package with standard JEDEC outline dimensions (8.75 mm × 4.00 mm × 1.75 mm). Pin 1 is marked by a notch or dot; the package is RoHS-compliant and rated for reflow soldering per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar triple video amplifier applications.

Compared with THS3203DR and LMH6738MA/NOPB, AD8023ARZ uniquely combines triple integration, 70 mA drive per channel, per-amplifier disable, and proven stability with >300 pF capacitive loads-making it optimal for cost-sensitive, space-constrained broadcast and computer video designs.

Availability

AD8023ARZ is available at Aetrix Electronics and suitable for LCD display modules, video line driver circuits, and broadcast equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for AD8023ARZ 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

Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, communications, automotive, and consumer markets since 1965.

The AD8023ARZ belongs to Analog Devices' high-speed video amplifier product line, engineered specifically for professional and broadcast video signal integrity, low distortion, and robust capacitive load driving in compact multi-channel configurations.

FAQ

What is the maximum capacitive load the AD8023ARZ can drive stably?

The AD8023ARZ is specified to drive up to 1000 pF capacitive load stably when used with appropriate feedback and series resistors (e.g., RF = 3 kΩ, RS = 10 Ω per Table II). At 300 pF, it achieves 35 ns settling to 0.1% with minimal overshoot, as verified in Figure 32 of the datasheet. This capability eliminates need for external isolation resistors in most video cabling scenarios.

Does the AD8023ARZ support single-supply operation?

Yes, the AD8023ARZ operates from a single +4.2 V to +15 V supply, with input common-mode range extending to ±6.0 V and output swing within 1.3 V of either rail into 150 Ω. For single-supply video applications, designers must bias inputs appropriately (e.g., 2.5 V DC restore) and verify headroom against the selected supply voltage per Figure 7.

How does the disable function affect power consumption of the AD8023ARZ?

When any disable pin is asserted, the corresponding amplifier's quiescent current drops from 6.2–10.0 mA to 1.3–4.0 mA (typ/max), reducing total supply current proportionally. With all three amplifiers disabled, total current falls to ~3.9–12.0 mA. This feature enables dynamic power scaling in video systems with variable channel activity.

What is the differential phase error specification for the AD8023ARZ at 3.58 MHz?

The AD8023ARZ exhibits 0.02° differential phase error at 3.58 MHz under standard test conditions (RL = 150 Ω, G = +2, RFB = 750 Ω), as specified in the "Differential Phase" row of the AD8023–SPECIFICATIONS table. This value ensures minimal hue shift in NTSC composite video applications and meets broadcast-grade signal fidelity requirements.

Can the AD8023ARZ be used in inverting gain configurations?

Yes, the AD8023ARZ supports both inverting and noninverting configurations with closed-loop gains ≥1. Table I lists –1 and –10 gain bandwidths (150 MHz and 60 MHz at ±7.5 V), and Figures 26–30 confirm stable closed-loop gain/phase behavior down to –10. Inverting use requires proper termination of the noninverting input to maintain common-mode range.