AD8023AR

Overview

The AD8023AR is a high current output, triple video amplifier manufactured by Analog Devices Inc. It features a 250 MHz unity gain bandwidth and a 1200 V/µs slew rate. Each amplifier provides 70 mA of output current and can drive unlimited capacitive loads. The device operates on ±2.5 V to ±7.5 V supplies with a maximum power supply current of 10.0 mA per amplifier. It includes a high-speed disable function for each channel.

Feature Summary

• High-speed disable function allows powering down or high-impedancing individual amplifiers for video multiplexing applications.
• Capable of driving large capacitive loads without oscillation while maintaining rapid settling times.
• Optimized for excellent video specifications including low differential gain and phase errors.
• Outputs swing to within one volt of either supply rail.

Applications

• LCD Displays
• Video Line Driver
• Broadcast and Professional Video
• Computer Video Plug-In Boards
• RGB Amplifier in Component Systems

Procurement Notes

Verify the specific ordering suffix (e.g., REEL) against the required packaging format. Confirm the industrial temperature range (-40 °C to +85 °C) matches system requirements. Ensure the 14-Lead Plastic SOIC package option aligns with PCB layout constraints. Cross-reference the AD8023A model designation with the datasheet specifications.

Selection Notes

Select this component for applications requiring high output current drive and stability with large capacitive loads. The current feedback architecture supports wide bandwidth customization via feedback resistor selection. Consider the internal short-circuit protection and overload recovery characteristics for robust signal handling in video systems.

Part Context

The AD8023AR belongs to the AD8023 family of high current output triple video amplifiers. It is designed for high-speed applications requiring single +5 V or dual power supplies up to ±7.5 V. The device integrates three independent amplifiers optimized for driving cables and large capacitive loads efficiently.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.

FAQ

How does the disable function operate?

Pulling the voltage on any Disable pin about 1.6 V up from the negative supply puts the corresponding amplifier into a disabled state, dropping quiescent current to approximately 1.3 mA and creating a high impedance output.

What is the capacitive load drive capability?

The AD8023 can drive unlimited capacitive load without oscillation when used with the appropriate feedback resistor, making it suitable for driving large capacitive loads up to 300 pF with rapid settling times.