Analog Devices Inc. AD810AR-REEL7

Overview

AD810AR-REEL7 from Analog Devices is a current-feedback video operational amplifier optimized for composite and HDTV signal paths. It delivers 80 MHz −3 dB bandwidth (G = +1), 30 MHz 0.1 dB bandwidth (G = +2), 0.02% differential gain, and 0.04° differential phase at ±15 V - enabling broadcast-quality NTSC/PAL video line driving and ADC/DAC buffering in professional cameras and multimedia systems.

For engineers reviewing the AD810AR-REEL7 datasheet, AD810AR-REEL7 pinout, AD810AR-REEL7 application, or AD810AR-REEL7 equivalent, key selection criteria include disable-mode power-down current (2.1 mA), input voltage noise (2.9 nV/√Hz), output swing into 150 Ω (±2.9 V @ ±5 V), and guaranteed break-before-make disable timing (100 ns turn-off).

Technical Context

The AD810AR-REEL7 employs a current-feedback architecture where closed-loop bandwidth is primarily set by feedback resistor value-not gain-enabling stable high-frequency performance across G = ±1 to ±10 configurations. Its transimpedance design maintains >50 MHz bandwidth with <0.1 dB peaking when using recommended RF values (e.g., 715 Ω for G = +2 at ±15 V).

It integrates a dedicated active-low DISABLE pin that guarantees break-before-make switching, isolates output to 64 dB at 5 MHz in off-state, and reduces quiescent supply current from 8.0 mA to 2.1 mA. Input common-mode range extends to ±13 V (±15 V supplies) and ±3.0 V (±5 V supplies), supporting flexible rail-to-rail video signal handling.

Key Specifications

Pinout & Package

AD810AR-REEL7 is housed in an 8-lead SOIC_N (Small Outline Integrated Circuit, narrow-body) package with standard JEDEC MS-012AC footprint and 1.27 mm pitch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar video op amp applications.

Compared with THS3201DR and LMH6702MA/NOPB, AD810AR-REEL7 uniquely combines broadcast-certified video performance, low-power disable, and SOIC packaging - making it the only choice for cost-sensitive, thermally constrained, and standards-compliant video line drivers.

Availability

AD810AR-REEL7 is available at Aetrix Electronics and suitable for professional video cameras, multimedia system video buffering, and NTSC/PAL-compatible distribution equipment requiring stable component supply and long-term manufacturability.

Supply support for AD810AR-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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.

The AD810AR-REEL7 belongs to Analog Devices' precision video amplifier product line, engineered specifically for broadcast-quality signal integrity, low power consumption, and robust disable functionality in portable and fixed video infrastructure.

FAQ

What is the minimum supply voltage required for stable operation of the AD810AR-REEL7?

The AD810AR-REEL7 operates with dual supplies ranging from ±2.5 V to ±18 V. Stable operation is confirmed down to ±2.5 V per rail (5 V total), with specified performance including 50 MHz −3 dB bandwidth (G = +1) and 22 MHz 0.1 dB bandwidth at ±5 V. Below ±2.5 V, parameters such as slew rate and output swing degrade outside guaranteed limits.

Does the AD810AR-REEL7 support single-supply operation?

No, the AD810AR-REEL7 is designed exclusively for dual-supply operation (±VS). Its input common-mode range is centered at ground and does not extend to the positive rail. Attempting single-supply use violates the absolute maximum rating for common-mode input voltage (±VS) and risks latch-up or undefined behavior. For single-supply video applications, consider the AD8075 or similar rail-to-rail alternatives.

How does the DISABLE pin function in the AD810AR-REEL7, and what drive capability is required?

The DISABLE pin on the AD810AR-REEL7 is active-low and requires sinking ≥30 µA to guarantee disable. At ±5 V supplies, it draws 50–75 µA; at ±15 V, 290–400 µA. A standard CMOS logic gate (e.g., 74LVC series) can directly drive it. The amplifier enters low-current mode (2.1 mA) within 100 ns and achieves 64 dB output isolation - critical for channel muting in video switchers.

Can the AD810AR-REEL7 drive a 75 Ω coaxial cable directly, and what layout considerations apply?

Yes, the AD810AR-REEL7 is explicitly characterized driving 150 Ω loads (equivalent to back-terminated 75 Ω coax). To maintain 0.1 dB flatness to 30 MHz, use a 715 Ω feedback resistor (G = +2), minimize trace length to the inverting input, place 0.1 µF bypass capacitors within 5 mm of each supply pin, and avoid vias in high-speed signal paths. PCB layout directly impacts peaking and stability.

What is the purpose of the OFFSET NULL pins (1 and 5) on the AD810AR-REEL7, and how are they used?

Pins 1 and 5 on the AD810AR-REEL7 provide access to the internal offset null network. A 10 kΩ potentiometer is connected between these pins, with its wiper tied to −VS. Adjusting the potentiometer trims input offset voltage to <1 mV - essential for DC-coupled video applications like DC restoration circuits where baseline shift must be minimized. No nulling is needed for AC-coupled use.