Analog Devices Inc. AD8072JRZ-REEL7

Overview

AD8072JRZ-REEL7 from Analog Devices is a dual, current-feedback video amplifier in an 8-lead SOIC package, delivering 100 MHz –3 dB bandwidth, 500 V/µs slew rate, and 0.05% differential gain error at 3.58 MHz for RGB/S-Video line driving. It operates from a single 5 V supply with 3.5 mA per amplifier quiescent current and outputs swing to within 1.3 V of rails.

For engineers reviewing the AD8072JRZ-REEL7 datasheet, AD8072JRZ-REEL7 pinout, AD8072JRZ-REEL7 application, or AD8072JRZ-REEL7 equivalent, this page provides verified pin functions, video-specific performance metrics (gain flatness, settling time, crosstalk), thermal derating curves, and validated alternatives for cost-sensitive analog video signal conditioning.

Technical Context

The AD8072JRZ-REEL7 uses a current-feedback architecture with 120 Ω inverting input resistance and 1 MΩ noninverting input resistance, enabling stable high-gain configurations up to G = +10 while maintaining 0.1 dB flatness to 10 MHz. Its transimpedance gain of 0.3 MΩ supports fast closed-loop response with feedback resistors ≥649 Ω.

It features rail-to-rail output swing capability (1.3 V from each rail on 5 V supply), 25 ns 0.1% settling time, and 60 dB crosstalk at 5 MHz between channels-critical for multi-channel RGB amplification where inter-channel isolation prevents color bleeding.

Key Specifications

Pinout & Package

AD8072JRZ-REEL7 is housed in an 8-lead SOIC (SO-8) package with standard JEDEC MS-012AC dimensions (5.00 mm × 6.20 mm × 1.75 mm height). Pin 1 is marked by a notch or dot; device orientation follows top-view numbering.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LMH6702MA/NOPB and THS3202D, AD8072JRZ-REEL7 uniquely balances 100 MHz bandwidth, 5 V single-supply operation, 0.05% differential gain, and $1.20/unit pricing-making it the most cost-effective solution for commercial RGB/S-Video line driving where strict NTSC/PAL compliance is mandatory.

Availability

AD8072JRZ-REEL7 is available at Aetrix Electronics and suitable for RGB video line drivers, S-Video amplifiers, and computer video plug-in boards requiring stable component supply across production lifecycles.

Supply support for AD8072JRZ-REEL7 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, founded in 1965 and headquartered in Wilmington, MA.

The AD8072JRZ-REEL7 belongs to Analog Devices' video amplifier product line, engineered specifically for cost-sensitive, high-volume analog video signal conditioning in consumer and commercial displays, broadcast interfaces, and PC graphics subsystems.

FAQ

What is the maximum feedback resistor value supported by the AD8072JRZ-REEL7 without degrading gain flatness?

The AD8072JRZ-REEL7 supports feedback resistors up to 2 kΩ while maintaining specified gain flatness. Beyond this value, bandwidth decreases significantly-e.g., at RF = 2 kΩ, 0.1 dB flatness drops to ~7 MHz versus 10 MHz at RF = 1 kΩ. This trade-off is documented in Figure 5 of the AD8072/AD8073 datasheet Rev. D, and applies directly to AD8072JRZ-REEL7 due to identical SOIC package and internal architecture.

Can the AD8072JRZ-REEL7 drive a 75 Ω video load, or is it limited to 150 Ω?

The AD8072JRZ-REEL7 is characterized and optimized for 150 Ω back-terminated loads, delivering 30 mA output current and 0.05% differential gain error under those conditions. Driving a 75 Ω load increases current demand beyond its 30 mA rating, causing output swing compression and increased distortion. For 75 Ω systems, external series termination or a higher-current amplifier like the AD8003 is recommended instead of AD8072JRZ-REEL7.

Does the AD8072JRZ-REEL7 support DC-coupled video signal paths?

Yes, the AD8072JRZ-REEL7 supports DC-coupled operation with input common-mode voltage range of ±3.8 V (or 1.2 V to 3.8 V in single-supply mode) and output swing of 1.3 V from each rail. This enables direct coupling of baseband video signals without AC-coupling capacitors-critical for preserving low-frequency chrominance information in component video systems using AD8072JRZ-REEL7.

What is the thermal resistance (θJA) of the AD8072JRZ-REEL7 in its SOIC package?

The AD8072JRZ-REEL7 in 8-lead SOIC (SO-8) package has a junction-to-ambient thermal resistance (θJA) of 140°C/W, as specified in the Absolute Maximum Ratings section of the AD8072/AD8073 datasheet Rev. D. This value assumes standard PCB layout with minimal copper pour; actual θJA improves to ~90°C/W with 1 in² copper pad per power pin, per Figure 2's derating curve.

Is the AD8072JRZ-REEL7 pin-compatible with other members of the AD8072 family, such as AD8072ARM-REEL7?

No, AD8072JRZ-REEL7 (SOIC, 0°C to +70°C) is not pin-compatible with AD8072ARM-REEL7 (µSOIC, –40°C to +85°C) despite identical electrical functionality. The µSOIC package has different pin pitch (0.5 mm vs. 1.27 mm) and footprint dimensions, requiring PCB redesign. Both share identical pin functions but differ in mechanical compatibility-AD8072JRZ-REEL7 cannot be substituted for AD8072ARM-REEL7 without layout changes.