Analog Devices Inc. ADA4856-3YCPZ-R7

Overview

ADA4856-3YCPZ-R7 from Analog Devices is a triple, single-supply, rail-to-rail output video amplifier with fixed +2 gain, 225 MHz −3 dB bandwidth (at 2 V_p-p), 800 V/µs slew rate, and 0.1% settling in 5 ns. It operates from 3 V to 5.5 V and delivers 52 mA per channel into 10 Ω, enabling professional video line driving and high-fidelity imaging signal conditioning.

For engineers reviewing the ADA4856-3YCPZ-R7 datasheet, ADA4856-3YCPZ-R7 pinout, ADA4856-3YCPZ-R7 application, or ADA4856-3YCPZ-R7 equivalent, key selection criteria include its 74 MHz 0.1 dB flatness into 150 Ω, differential gain/phase error of 0.01%/0.01°, power-down capability (1.1 mA disabled), and LFCSP-16 package optimized for low-crosstalk video routing.

Technical Context

The ADA4856-3YCPZ-R7 employs a voltage-feedback architecture with a proprietary XFCB3 process input stage delivering both wide input common-mode range (−VS − 0.2 V to +VS − 1 V) and low 14 nV/√Hz input voltage noise. Its patented rail-to-rail output stage enables 0.1 V to 4.9 V swing on 5 V supply, supporting true single-supply operation down to 3.3 V.

All three amplifiers share a single power-down (PD) control pin, with turn-on/turn-off times of 78 ns and 950 ns respectively. On-chip 402 Ω gain-setting resistors fix closed-loop gain at +2 (1.95–2.05 V/V), eliminating external feedback components and reducing board area while ensuring matched channel performance.

Key Specifications

Pinout & Package

ADA4856-3YCPZ-R7 is housed in a 16-lead 3 mm × 3 mm LFCSP package with exposed thermal pad connected to −VS. The pinout supports independent triple-channel routing with dedicated ±IN/OUT per amplifier and dual +VS/−VS supply pins for low-impedance power distribution.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADA4857-3YCPZ-R7 and THS3203DGN, the ADA4856-3YCPZ-R7 uniquely balances broadcast-grade video accuracy (0.01% DG/DP), integrated +2 gain, and low 7.8 mA/amplifier power - making it optimal for cost-sensitive, space-constrained, and fidelity-critical analog video systems.

Availability

ADA4856-3YCPZ-R7 is available at Aetrix Electronics and suitable for professional video distribution, medical imaging signal chains, and industrial machine vision interfaces requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for ADA4856-3YCPZ-R7 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 ADA4856-3YCPZ-R7 belongs to Analog Devices' high-speed video amplifier product line, engineered specifically for broadcast, medical, and industrial video signal integrity - emphasizing differential gain/phase accuracy, rail-to-rail output swing, and integrated gain topology.

FAQ

What is the operating supply voltage range for the ADA4856-3YCPZ-R7?

The ADA4856-3YCPZ-R7 operates from 3 V to 5.5 V single supply or ±1.5 V to ±2.75 V dual supply. Its input common-mode range extends from −VS − 0.2 V to +VS − 1 V, and output swings from 0.1 V to 4.9 V on 5 V supply - enabling robust single-supply video designs without level shifting. This range is fully specified in Tables 1 and 2 of the Rev. B datasheet.

Does the ADA4856-3YCPZ-R7 support DC-coupled video applications?

Yes, the ADA4856-3YCPZ-R7 supports true DC-coupled operation: its input common-mode range includes ground (−VS − 0.2 V on 0 V negative rail), and its rail-to-rail output can swing to within 100 mV of either supply. Figure 48 in the datasheet shows a working DC-coupled single-supply video driver schematic using this capability.

How does the power-down (PD) pin function on the ADA4856-3YCPZ-R7?

The PD pin controls all three amplifiers simultaneously. It is enabled when voltage exceeds +VS − 1.25 V (e.g., >3.75 V at +VS = 5 V) and disabled when below +VS − 2.5 V (e.g., <2.5 V). Turn-off current drops to 1.1 mA total; turn-on/turn-off times are 78 ns and 950 ns. Leaving PD floating also enables the device.

Can the ADA4856-3YCPZ-R7 be used at gains other than +2?

Yes - though optimized for G = +2, the ADA4856-3YCPZ-R7 supports G = +1 (two configurations), G = −1, and composite gains up to +5 using inter-amplifier feedback. Figures 34–40 detail schematics and performance trade-offs (e.g., flatness, peaking) for each configuration in the Rev. B datasheet.

What is the thermal performance of the ADA4856-3YCPZ-R7 in its LFCSP package?

The ADA4856-3YCPZ-R7 in 16-lead LFCSP has θ_JA = 67°C/W and θ_JC = 17.5°C/W. With its exposed pad soldered to −VS plane, it sustains continuous operation at 7.8 mA/amplifier up to +105°C ambient. Figure 3 provides derating curves; maximum junction temperature is 150°C.