Analog Devices Inc. AD8024ARZ

Overview

AD8024ARZ from Analog Devices is a quad high-speed current feedback operational amplifier designed for video and high-voltage analog signal conditioning. It delivers 350 MHz bandwidth at G = +1, 2400 V/µs slew rate on ±12 V supplies, and 0.1% settling in 35 ns into 300 pF - enabling use as an LCD column driver, video line driver, or ATE front-end amplifier.

For engineers reviewing the AD8024ARZ datasheet, AD8024ARZ pinout, AD8024ARZ application, or AD8024ARZ equivalent, key selection criteria include its 16-lead SOIC package, disable-enabled power management (25 ns turn-off), ±12 V / +5 V to +24 V supply flexibility, and verified capacitive load drive up to 1000 pF without oscillation.

Technical Context

The AD8024ARZ employs a current feedback architecture with high open-loop transresistance (1.2 MΩ typical) and low inverting input impedance (135 Ω), enabling bandwidth customization via feedback resistor selection. Its XFHV bipolar process supports rail-to-rail output swing within 1.3 V of ±12 V rails and delivers 50 mA linear output current per channel.

Each amplifier features independent high-speed disable control, delivering 49 dB off-isolation at 6 MHz and reducing total quiescent current from 16 mA to 0.5 mA. Input common-mode range extends from –VS + 1.2 V to +VS – 2 V, supporting wide dynamic range signal acquisition across dual and single-supply configurations.

Key Specifications

Pinout & Package

The AD8024ARZ is housed in a 16-lead narrow-body SOIC (R-16A) package, 10.0 mm × 4.0 mm × 1.75 mm, 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 high-speed quad amplifier applications.

Compared with AD8024ARZ, AD8021ARZ requires PCB layout duplication and lacks integrated disable, while LMH6738MA/NOPB delivers higher bandwidth at triple the power consumption - making AD8024ARZ optimal for balanced video fidelity, thermal budget, and channel density.

Availability

AD8024ARZ is available at Aetrix Electronics and suitable for LCD column driving, video line distribution, and high-performance ATE requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for AD8024ARZ 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 AD8024ARZ belongs to Analog Devices' high-speed video amplifier product line, engineered specifically for broadcast, instrumentation, and display applications demanding wide bandwidth, low distortion, and robust capacitive load drive.

FAQ

What supply voltages does the AD8024ARZ support?

The AD8024ARZ operates on single supplies from +5 V to +24 V or dual supplies from ±2.5 V to ±12 V. At ±12 V, it achieves 2400 V/µs slew rate and 350 MHz bandwidth. Its input common-mode range extends from –VS + 1.2 V to +VS – 2 V, ensuring compatibility with both rail-to-rail and traditional op-amp signal chains. The AD8024ARZ maintains specified performance across this full range without external biasing.

How does the disable function work on the AD8024ARZ?

The AD8024ARZ's DIS pin (Pin 8) enables global shutdown of all four amplifiers. When pulled ≥1.6 V above DGND, it reduces total quiescent current from 16 mA to 0.5 mA, places outputs in high-impedance state, and provides 49 dB input-to-output isolation at 6 MHz. Turn-off time is 20 ns and turn-on time is 25 ns. During disable, the output impedance is dominated by external circuitry in parallel with ~20 pF internal capacitance - preserving signal integrity in multiplexed systems.

Can the AD8024ARZ drive 75 Ω video loads reliably?

Yes, the AD8024ARZ is characterized for RL = 150 Ω and RL = 1 kΩ, but its 50 mA linear output current and 300 mA peak current capability allow direct 75 Ω driving with proper feedback network design. Video specifications - including 0.04% differential gain and 0.09° differential phase at 3.58 MHz - were measured into 150 Ω, confirming suitability for 75 Ω systems when gain and termination are adjusted per Analog Devices' Application Note AN-323. The AD8024ARZ maintains stability into 1000 pF, covering typical coaxial cable capacitance.

What is the maximum capacitive load the AD8024ARZ can drive without compensation?

The AD8024ARZ drives up to 1000 pF capacitive load stably without external compensation, as confirmed in the Absolute Maximum Ratings and Typical Performance Characteristics. This capability stems from its current feedback architecture and high output current (50 mA linear), which rapidly charge/discharge large capacitances. For optimal pulse fidelity into >300 pF loads, Analog Devices recommends adding a 10 Ω series resistor at the output - a practice validated in Figure 3 and TPC 24 of the AD8024ARZ datasheet.

Does the AD8024ARZ require special layout considerations for high-frequency operation?

Yes. To maintain 350 MHz bandwidth and minimize crosstalk (<–58 dB @ 5 MHz), the AD8024ARZ requires tight layout discipline: short, direct traces for feedback and gain-setting resistors; ground plane under the SOIC footprint; separate analog and digital ground planes tied at a single point near DGND (Pin 16); and decoupling capacitors (0.1 µF ceramic + 10 µF tantalum) placed within 5 mm of VCC (Pin 7) and VEE (Pin 9). Avoid routing sensitive inputs near noisy digital lines - the AD8024ARZ's 62 dB CMRR degrades above 10 MHz if layout compromises common-mode rejection.