Analog Devices Inc. AD813ARZ-14

Overview

AD813ARZ-14 from Analog Devices is a single-supply, low-power triple current-feedback video amplifier optimized for RGB, CCD, and broadcast video line driving. It delivers 125 MHz unity-gain bandwidth (–3 dB), 0.03% differential gain error, and 0.06° differential phase error at ±15 V into 150 Ω - enabling high-fidelity analog video signal distribution in portable and industrial systems.

For engineers reviewing the AD813ARZ-14 datasheet, AD813ARZ-14 pinout, AD813ARZ-14 application, or AD813ARZ-14 equivalent, this page provides verified specifications, package mapping to 14-lead SOIC, channel disable timing (80 ns turn-off), output swing to within 1 V of rails, and real-world video system integration guidance - all validated against Analog Devices' official Rev. B datasheet.

Technical Context

The AD813ARZ-14 implements three independent current-feedback amplifiers on a complementary bipolar process, each with 50 mA output drive capability and rail-to-rail output swing (±1 V). Its architecture supports closed-loop gains ≥ +1 or –1, with bandwidth strongly dependent on feedback resistor value and supply voltage - e.g., 100 MHz at G = +2 with ±15 V and RF = 681 Ω.

Each channel features a dedicated high-speed disable function (turn-off time ≤ 80 ns, off isolation –55 dB at 5 MHz), enabling use in video multiplexing and power-gated signal paths. Input common-mode range spans +1.0 V to +4.0 V at +5 V supply, and input impedance is asymmetric: 15 MΩ at noninverting input, ~90 Ω at inverting input.

Key Specifications

Pinout & Package

AD813ARZ-14 is housed in a 14-lead plastic SOIC (Small Outline Integrated Circuit) package, RoHS-compliant and rated for –40°C to +85°C operation. Pin spacing is 1.27 mm, body width 3.9 mm, and total length 8.65 mm - compatible with standard SOIC-14 PCB footprints and reflow assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with THS3203D and LMH6738MA, AD813ARZ-14 uniquely combines single-supply operation, per-channel disable, and broadcast-grade video specs in SOIC-14 - making it the only option supporting portable RGB line driving with hardware-multiplexed source selection.

Availability

AD813ARZ-14 is available at Aetrix Electronics and suitable for RGB video line driving, LCD timing controller interfaces, ultrasound signal conditioning, and computer video plug-in boards requiring stable component supply and long-term industrial availability.

Supply support for AD813ARZ-14 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 AD813 product line was engineered specifically for high-fidelity analog video signal distribution - emphasizing differential gain/phase accuracy, multi-channel matching, and low-power single-supply operation in compact packages.

FAQ

What supply voltage ranges does the AD813ARZ-14 support?

The AD813ARZ-14 operates from a single +2.4 V to +36 V supply or dual ±1.2 V to ±18 V supplies. At +3 V, it achieves 40 MHz –3 dB bandwidth and 0.2% differential gain error; at ±15 V, bandwidth reaches 125 MHz with 0.03% differential gain error. The device's quiescent current scales linearly with supply voltage, ranging from 3.0 mA to 5.5 mA per amplifier.

Does the AD813ARZ-14 support DC-coupled video inputs?

Yes, the AD813ARZ-14 supports DC-coupled video inputs. Its input common-mode voltage range extends from +1.0 V to +4.0 V at +5 V supply, and +1.0 V to +2.0 V at +3 V supply. This allows direct connection to DC-centered video sources without AC coupling capacitors - preserving low-frequency response critical for sync pulses and grayscale stability.

How is channel matching performance specified for the AD813ARZ-14?

AD813ARZ-14 specifies gain flatness match of 0.1 dB at G = +2, f = 20 MHz (single supply), and dynamic crosstalk of –65 dB at 5 MHz. DC matching includes input offset voltage match ≤3.5 mV and –input bias current match ≤25 µA across temperature. These values ensure consistent amplitude and timing response across RGB or YUV channels in multi-amplifier video systems.

Can the AD813ARZ-14 drive 75 Ω coaxial cables directly?

Yes, the AD813ARZ-14 is explicitly optimized for driving back-terminated 75 Ω video loads. With G = +2 and ±15 V supply, it delivers 0.1 dB gain flatness to 50 MHz and 0.03%/0.06° differential gain/phase error into 150 Ω - equivalent to two 75 Ω loads in parallel. Output current of 50 mA ensures stable termination without external buffers.

What is the thermal performance of the AD813ARZ-14 in SOIC-14 package?

The AD813ARZ-14 in SOIC-14 has a junction-to-ambient thermal resistance (θJA) of 120°C/W. At maximum rated dissipation (1.0 W), junction temperature rise is 120°C above ambient. Derating begins at +70°C ambient, with full power allowed only below +50°C ambient per Figure 3 in the datasheet. Internal thermal shutdown is not implemented; safe operation requires external thermal design.