Analog Devices Inc. AD8074ARUZ

Overview

AD8074ARUZ from Analog Devices is a triple-channel, high-speed video buffer with unity gain (G = +1), designed for RGB signal conditioning in LCD and plasma display systems. It delivers 600 MHz small-signal bandwidth (–3 dB, 200 mV_p-p, 5 pF load), 1600 V/µs slew rate, 4 ns settling time to 0.1%, and <30 mA quiescent current on ±5 V supplies - enabling high-fidelity analog video routing with low power and fast channel disable.

For engineers reviewing the AD8074ARUZ datasheet, AD8074ARUZ pinout, AD8074ARUZ application, or AD8074ARUZ equivalent, this page provides verified technical context, real-world video system use cases, validated alternatives, and supply-ready procurement details - all grounded in Analog Devices' official AD8074/AD8075 Rev. B datasheet and ordering guide.

Technical Context

The AD8074ARUZ implements three independent, fully buffered voltage follower channels using NPN transconductance input stages and folded-cascode output stages with emitter-follower buffers. Each channel features low input capacitance (1.5 pF) and high input impedance (>10 MΩ), optimized for driving reverse-terminated 75 Ω or 150 Ω video loads while maintaining 0.01% differential gain and 0.01° differential phase error at 3.58 MHz.

Its TTL-compatible OE pin controls simultaneous high-impedance disable of all three outputs, reducing quiescent current to ≤5.5 mA and providing >90 dB OFF isolation at 10 MHz. The architecture supports dual-supply (±4.5 V to ±5.5 V) operation and includes internal short-circuit protection, thermal derating guidance (θ_JA = 150.4 °C/W), and ESD protection rated to 4000 V HBM.

Key Specifications

Pinout & Package

AD8074ARUZ is housed in a 16-lead TSSOP (RU-16) package per JEDEC MO-153-AB, with 0.65 mm pitch, 5.0 mm × 4.4 mm body, and 1.2 mm max height. Thermal resistance is θ_JA = 150.4 °C/W (still air).

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD8075ARUZ, AD8074ARUZ provides higher small-signal bandwidth and lower power for unity-gain RGB buffering; compared with THS3201DGN, it delivers triple-channel integration, built-in disable, and broadcast-grade video specs in a single RU-16 package - reducing BOM count and layout risk.

Availability

AD8074ARUZ is available at Aetrix Electronics and suitable for RGB buffering in LCD/plasma displays, video router signal distribution, and triple 2:1 video multiplexing requiring stable component supply, RoHS-compliant packaging, and long-term industrial temperature support (–40°C to +85°C).

Supply support for AD8074ARUZ 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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with design centers worldwide and ISO 9001-certified manufacturing.

The AD8074ARUZ belongs to Analog Devices' high-speed video amplifier product line, engineered specifically for broadcast, computer graphics, and professional video equipment demanding precision timing, low distortion, and multi-channel integration.

FAQ

What is the maximum operating supply voltage for AD8074ARUZ?

The AD8074ARUZ has an absolute maximum supply voltage rating of ±12 V, but its specified operating range is ±4.5 V to ±5.5 V. Operating outside ±5.5 V risks permanent damage per Absolute Maximum Ratings. For reliable performance, maintain dual supplies within ±5 V ±10%, as all key specifications (bandwidth, slew rate, distortion) are characterized at ±5 V.

Does AD8074ARUZ support single-supply operation?

Yes, AD8074ARUZ can operate from a single 10 V supply, but requires careful biasing: AGND pins must be tied near mid-supply (~5 V) to serve as the reference for internal gain networks, while DGND remains at system ground. OE logic thresholds remain TTL-compatible, and output swing is limited to ~2.3 V from each rail - making it suitable for 7 V single-supply systems with 2 V_p-p signals.

How does the OE pin behave during power-up or power-down sequences?

The OE pin is not powered separately and shares the same supply domain as the analog core. During power-up, OE should be held low (enabled) only after both ±5 V supplies stabilize within ±5% tolerance; applying OE logic before supply regulation risks undefined output states. During power-down, OE may float - but Analog Devices recommends actively pulling OE high (disable) before supply collapse to prevent output contention or latch-up.

What is the recommended PCB layout practice for minimizing crosstalk in AD8074ARUZ designs?

To minimize crosstalk, use a solid, unbroken ground plane beneath the AD8074ARUZ, route IN0/IN1/IN2 and OUT0/OUT1/OUT2 as controlled-impedance 50 Ω microstrips, place 0.1 µF ceramic bypass capacitors within 2 mm of each VCC/VEE pin, and isolate AGND and DGND with separate copper pours joined at a single point near the device. Avoid routing sensitive analog traces parallel to digital lines or power planes.

Can AD8074ARUZ drive 75 Ω coaxial cables directly without external termination resistors?

No - AD8074ARUZ outputs are low-impedance voltage sources (0.5 Ω enabled) and require series termination for 75 Ω coaxial transmission. Place a 75 Ω resistor in series with each output (e.g., OUT0–R–cable) to match characteristic impedance and prevent reflections. This configuration, combined with proper 75 Ω shunt termination at the load end, ensures optimal signal integrity for RGB video up to 1080p60.