AD8023ARZ-REEL7

Overview

The AD8023ARZ-REEL7 is a high current output, triple video amplifier from Analog Devices. It operates on ±2.1 V to ±7.5 V dual supplies or +4.2 V to +15 V single supply. Each amplifier provides 70 mA output current and drives unlimited capacitive loads. Key electrical parameters include a 250 MHz unity gain bandwidth, 1200 V/µs slew rate, and 35 ns settling time to 0.1%. Video specifications feature 0.06% differential gain error and 0.02° differential phase error. The device includes a high-speed disable function with 30 ns turn-off time and offers internal short-circuit protection.

Feature Summary

• High current output drive capability of 70 mA per amplifier for driving large capacitive loads
• Excellent video performance with low differential gain and phase errors
• Integrated high-speed disable function for power-down and multiplexing applications
• Internal short-circuit protection with 200 mA short circuit current

Applications

• LCD Displays
• Video Line Driver
• Broadcast and Professional Video
• Computer Video Plug-In Boards
• Consumer Video

Procurement Notes

Verify the ordering suffix REEL7 corresponds to the 7-inch tape and reel packaging option as specified in the manufacturer's ordering guide. Confirm the package type is the 14-lead plastic SOIC (R-14). Ensure static discharge precautions are observed during handling due to ESD sensitivity. Cross-reference the specific revision A datasheet for accurate parameter limits before finalizing procurement.

Selection Notes

Select this component for applications requiring high-speed video signal processing with significant capacitive load driving capabilities. The current feedback architecture allows for customizable bandwidth via feedback resistor selection. Consider the industrial temperature range of –40 °C to +85 °C for environmental suitability. Evaluate the need for the disable pin functionality if power management or video multiplexing is required in the system design.

Part Context

The AD8023 is part of Analog Devices' portfolio of high-performance video amplifiers designed for professional and consumer video equipment. It utilizes a current feedback topology to achieve wide bandwidth and fast settling times. The triple amplifier configuration allows for RGB signal processing within a single package. The device is optimized for use in systems requiring precise video fidelity and rapid signal response under varying load conditions.

Replacement Considerations

Direct substitutes are not explicitly listed in the provided documentation. Verify compatibility by comparing pin configurations, supply voltage ranges, and electrical performance metrics such as bandwidth and output current against alternative triple video amplifiers.

FAQ

How does the AD8023 handle large capacitive loads?

The AD8023 can drive unlimited capacitive loads without oscillation when used with the appropriate feedback resistor. For optimal pulse response, a small output series resistor is recommended alongside the feedback resistor.

What is the function of the Disable pins?

Pulling a Disable pin approximately 1.6 V above the negative supply puts the corresponding amplifier into a powered-down state with high impedance output. This feature supports video multiplexing and power reduction.

What is the typical differential gain and phase error?

The AD8023 offers excellent video specifications with a differential gain error of 0.06% and a differential phase error of 0.02 degrees at a load resistance of 150 Ω.