Analog Devices Inc. AD8012ARZ

Overview

AD8012ARZ from Analog Devices is a dual, low-power, current-feedback amplifier optimized for high-speed signal conditioning in video, imaging, and communications systems. It delivers 350 MHz –3 dB bandwidth (G = +1), 2,250 V/µs slew rate, and 20 ns settling time to 0.1%, operating on ±5 V or single +5 V supplies with only 1.7 mA per amplifier. It is widely deployed in XDSL line drivers and ADC buffers where low distortion and minimal power are critical.

For engineers reviewing the AD8012ARZ datasheet, AD8012ARZ pinout, AD8012ARZ application, or AD8012ARZ equivalent, key selection considerations include its current-feedback architecture, dual-channel 125 mA output drive capability, differential gain error of 0.02% at 3.58 MHz, industrial temperature range (–40°C to +85°C), and SOIC_N-8 package compatibility with standard PCB assembly processes.

Technical Context

The AD8012ARZ employs a two-stage complementary current-feedback topology that decouples quiescent current from slew performance-enabling high bandwidth (350 MHz) and fast settling (20 ns) while maintaining ultra-low 1.7 mA/amp supply current. Its open-loop transimpedance ranges from 200 kΩ to 500 kΩ, and it supports both dual-supply (±1.5 V to ±6 V) and single-supply (3 V to 12 V) operation.

It features rail-to-rail output swing (±3.85 V on ±5 V), input common-mode range extending to ±4.1 V, and robust video specifications: 0.02% differential gain error and 0.06° differential phase error at 3.58 MHz with RL = 1 kΩ and G = +2. Crosstalk is –70 dB at 5 MHz into 100 Ω, confirming tight channel isolation for dual-path signal chains.

Key Specifications

Pinout & Package

AD8012ARZ is housed in an 8-lead SOIC_N (narrow-body) package (JEDEC MS-012-AA, package option R-8), measuring 5.00 mm × 4.00 mm × 1.50 mm, with gull-wing leads and 1.27 mm pitch. It is RoHS-compliant (Z suffix) and rated for industrial temperature operation (–40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual high-speed amplifier applications.

Compared with AD8012ARZ, AD8000ARZ offers identical speed but doubles board area and cost for dual-channel needs, while LMH6702MA/NOPB delivers excess bandwidth at 2.6× higher supply current - making AD8012ARZ the optimal balance of speed, power, video fidelity, and dual-channel integration for industrial and communications signal conditioning.

Availability

AD8012ARZ is available at Aetrix Electronics and suitable for XDSL line drivers, high-speed ADC buffers, and professional video signal conditioning requiring stable component supply, long-term industrial temperature support, and RoHS-compliant packaging.

Supply support for AD8012ARZ 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 and manufacturing operations worldwide.

The AD8012ARZ belongs to Analog Devices' high-speed current-feedback amplifier product line, engineered specifically for low-power, high-fidelity signal conditioning in video, imaging, and wired communications infrastructure - emphasizing bandwidth efficiency, distortion control, and supply flexibility.

FAQ

What is the maximum output voltage swing of AD8012ARZ on ±5 V supplies?

The AD8012ARZ delivers ±3.85 V output swing into a 100 Ω load and ±3.8 V into 1 kΩ under ±5 V dual-supply conditions. This rail-to-rail capability enables full utilization of the supply without clipping in video and line-driver applications. The AD8012ARZ maintains this performance across the industrial temperature range (–40°C to +85°C), with output resistance specified at 0.1 Ω for minimal gain error under load.

Does AD8012ARZ support single-supply operation, and what is the minimum supply voltage?

Yes, AD8012ARZ supports true single-supply operation from +3 V to +12 V. At +5 V, it achieves 300 MHz –3 dB bandwidth (G = +1), 1,200 V/µs slew rate, and 25 ns 0.1% settling time - with input common-mode range from 1.2 V to 3.8 V and output swing from 0.9 V to 4.2 V. The AD8012ARZ's internal architecture eliminates level-shifting constraints, enabling direct interfacing with 3.3 V logic and ADCs.

What is the differential phase error specification for AD8012ARZ, and under what conditions is it measured?

The AD8012ARZ exhibits 0.06° differential phase error at 3.58 MHz, measured with RL = 1 kΩ, G = +2, and black-level clamped to +2 V under single +5 V supply conditions. This value is confirmed in the Rev. C datasheet (page 3, Single Supply section) and reflects its suitability for NTSC/PAL video systems where chrominance timing accuracy directly impacts color fidelity and cross-color artifacts.

Can AD8012ARZ drive a 100 Ω load continuously, and what is its thermal derating profile?

Yes, AD8012ARZ is rated for continuous 125 mA output current per channel into 100 Ω loads. Its SOIC_N-8 package has a junction-to-ambient thermal resistance (θ_JA) of 155°C/W. At +25°C ambient and ±5 V supplies, maximum safe power dissipation is ~0.8 W; derating begins linearly above +25°C, reaching ~0.5 W at +85°C ambient - consistent with Figure 3 in the AD8012 Rev. C datasheet.

Is AD8012ARZ pin-compatible with other members of the AD80xx family, such as AD8011 or AD8013?

No, AD8012ARZ is not pin-compatible with AD8011 (single-channel) or AD8013 (dual-channel with different pinout). AD8012ARZ uses a dedicated 8-pin SOIC_N layout with shared –VS on Pins 4 and 5, whereas AD8013 places –VS only on Pin 4 and assigns Pin 5 to OUT2. Substituting without PCB revision risks incorrect biasing or functional failure - always verify pin mapping against the specific device's datasheet before replacement.