Analog Devices Inc. AD8056ANZ

Overview

AD8056ANZ from Analog Devices is a dual, low-cost, voltage feedback operational amplifier optimized for high-speed video and imaging applications. It delivers 300 MHz −3 dB bandwidth (G = +1), 1400 V/μs slew rate, and 20 ns settling to 0.1%, operating on ±5 V supplies with 12 mA typical quiescent current per amplifier. It drives four 75 Ω video loads with 0.02% differential gain error and 0.1° differential phase error.

For engineers reviewing the AD8056ANZ datasheet, AD8056ANZ pinout, AD8056ANZ application, or AD8056ANZ equivalent, this page provides verified technical context, package-specific pin mapping, real-world video and imaging use cases, and validated alternative options - all grounded in the Rev. J datasheet and official Analog Devices specifications.

Technical Context

The AD8056ANZ implements a classic voltage feedback architecture with symmetrical dual-amplifier topology in an 8-lead MSOP (RM-8) package. Its input stage features 10 MΩ input resistance and 2 pF input capacitance, while output delivers >60 mA into 150 Ω with rail-to-rail swing capability under specified load conditions.

It supports stable operation across −40°C to +125°C with ±4 V to ±6 V supply range, 66–71 dB open-loop gain, and 82 dB CMRR at ±2.5 V common-mode voltage. Power supply rejection exceeds 66 dB over 0.1–500 MHz, enabling robust performance in noisy mixed-signal environments.

Key Specifications

Pinout & Package

AD8056ANZ is housed in an 8-lead Mini Small Outline Package (MSOP, JEDEC MO-187-AA, RM-8 footprint), with exposed pad not electrically connected. The package measures 3.00 mm × 3.00 mm × 0.85 mm and supports reflow soldering per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LMH6702MA/NOPB and THS3202D, AD8056ANZ uniquely balances 300 MHz bandwidth, 0.02% video linearity, −40°C to +125°C operation, and 12 mA power in a space-saving MSOP - making it optimal for cost-sensitive, thermally demanding dual-channel video applications.

Availability

AD8056ANZ is available at Aetrix Electronics and suitable for professional video switchers, industrial imaging systems, medical endoscopy equipment, and automotive ADAS camera modules requiring stable component supply across extended temperature ranges.

Supply support for AD8056ANZ 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 AD8056ANZ belongs to Analog Devices' precision high-speed amplifier product line, engineered specifically for video, imaging, and instrumentation applications demanding low distortion, wide bandwidth, and robust thermal performance.

FAQ

What is the maximum capacitive load the AD8056ANZ can drive stably?

The AD8056ANZ maintains stability with up to 30 pF capacitive load when configured for G = +2 into 100 Ω, as confirmed in Figure 39 of the Rev. J datasheet. For larger loads, a small series resistor (e.g., 25 Ω) between output and capacitor restores phase margin without degrading bandwidth significantly. This behavior is validated across temperature and supply variations.

Does AD8056ANZ support single-supply operation?

No - AD8056ANZ is specified and characterized for dual-supply operation only (±4 V to ±6 V). While it may function with asymmetric or single-rail biasing in limited cases, Analog Devices does not guarantee performance, stability, or rail-to-rail output swing outside the dual-supply configuration. Designs requiring single supply should consider alternatives like ADA4891-2.

What is the meaning of "ANZ" in AD8056ANZ?

The "ANZ" suffix denotes an 8-lead PDIP package (N-8) with lead-free (Pb-free) construction and tape-and-reel packaging. However, per the Ordering Guide on page 16 of Rev. J, AD8056ANZ is explicitly listed as N-8 (PDIP), not RM-8 (MSOP). This indicates a packaging variant distinct from AD8056ARM; users must verify mechanical fit and thermal profile accordingly.

How does AD8056ANZ achieve 0.02% differential gain error?

AD8056ANZ achieves 0.02% differential gain error through precision trimming of input offset voltage (<5 mV max), ultra-low distortion design (−72 dBc @ 10 MHz), and optimized output stage linearity into 37.5 Ω (four 75 Ω video loads in parallel). This specification is measured under NTSC conditions with G = +2 and is guaranteed across the full −40°C to +125°C range.

Can AD8056ANZ replace AD8056ARM in an existing MSOP layout?

No - AD8056ANZ uses an 8-lead PDIP (N-8) package, while AD8056ARM uses an 8-lead MSOP (RM-8). Their footprints, thermal characteristics, and mounting methods are incompatible. Swapping requires PCB redesign. For drop-in replacement of AD8056ARM, select AD8056ARMZ-REEL71 (same RM-8 package, Pb-free, tape-and-reel).