AD811JR Datasheet/PDFVideo amplifiers and modules are often used in electronics applications to improve the quality of images that are captured or transmitted over a network. The AD811JR is a video amplifier module specifically designed for a variety of linear and audio-video applications, such as RGB or component video line drives, video buffering, and AV receiver line management. It is a low power, wide input voltage range, differential amplifier, which has become a popular choice for designers of video application products.
Features
The AD811JR is designed to provide excellent signal quality with high performance communication networks. It features a low offset voltage with low noise, wide input common mode range, low power consumption, low distortion, and a 100-MHz bandwidth range. It is available in a variety of small packages, including miniature 8-pin SOICs. The chip is also protected from ESD and it has an integrated temperature-compensation system to maintain optimal operating temperature.
Application Field
The AD811JR is typically used in applications where high performance amplifiers are required such as in video displays, networked audio visual systems, and audio amplifier systems. In particular, it is suitable for applications that require high precision signals, low noise and low power consumption. The wide input common mode range makes the AD811JR suitable for applications that require input signals with large crosstalk levels.
Working Principle
The AD811JR is a fast and low power differential amplifier. It is capable of delivering an output signal with low distortion and low noise. The low offset voltage and low noise of the chip are the result of the use of an integrated temperature-compensation system. The device has an internal buffer that reduces the power consumption and allows the chip to switch between high and low power mode, thus preserving the signal quality. The AD811JR uses a single supply voltage and is also capable of providing balanced drives.
The AD811JR is capable of driving a differential load, usually a speaker, and the output swing is adjustable. The amplifier also has adjustable quiescent current, which can be set to reduce power consumption. The output of the amplifier can be controlled with a serial port or with analog control signals. The AD811JR has an onboard status indicator that can be used to monitor the amplifier’s operating parameters.
Conclusion
The AD811JR is a video amplifier module designed for a variety of linear and audio-video applications. It features low offset voltage, low noise, low power consumption, and wide input common mode range. It is suitable for applications that require high precision signals, low noise and low power consumption. The device has an integrated temperature-compensation system to maintain optimal operating temperature, and is available in a variety of packages.