AD818AN

Overview

The AD818AN is a low-cost, low-power video operational amplifier manufactured by Analog Devices Inc. It features a 55 MHz 0.1 dB bandwidth at gain +2 and a 130 MHz 3 dB bandwidth at gain +2. The device offers a slew rate of 500 V/µs and an 80 ns settling time to 0.01%. It provides a minimum output current of 50 mA and operates on single +5 V or dual ±5 V to ±15 V supplies with a maximum supply current of 7.5 mA. Differential gain and phase errors are 0.01% and 0.05°, respectively.

Feature Summary

• Optimized for video applications requiring gains equal to or greater than +2 or -1
• High output drive capability suitable for driving back-terminated cables
• Low power consumption with flexible single and dual supply operation
• Excellent video performance with minimal differential gain and phase errors

Applications

• Video cameras
• Professional video equipment
• Video monitors
• CATV systems
• Color copiers and image scanners

Procurement Notes

Verify the package type matches the required form factor, as the AD818AN specifically denotes the 8-pin plastic mini-DIP variant. Confirm the operating temperature range meets system requirements, as this part is rated for -40°C to +85°C. Ensure supply voltage constraints align with the specified single or dual rail options to maintain optimal performance and prevent damage.

Selection Notes

Select the AD818AN when high-speed video signal processing is required alongside low power consumption. Its voltage feedback architecture makes it suitable for gain stages in high-speed systems. Consider its 50 mA output drive for direct cable interfacing. Evaluate the trade-off between its cost-effectiveness and the specific bandwidth needs of the application compared to higher-performance alternatives.

Part Context

The AD818 is part of Analog Devices' portfolio of video operational amplifiers designed for cost-sensitive yet high-performance applications. It serves as a versatile solution for signal conditioning in consumer and professional electronics. The component bridges the gap between general-purpose op amps and specialized video drivers, offering robust performance in a compact 8-pin package format.

Replacement Considerations

The AD818 is functionally similar to the AD828, though the AD828 is a dual-channel device while the AD818 is single-channel. Verify pin compatibility and electrical specifications before substitution. No other direct public substitute part numbers are confirmed in the provided documentation.