AD847ARZ-REEL7

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The AD847ARZ-REEL7 is a low-noise, precision, rail-to-rail output instrumentation amplifier from Analog Devices. The low noise amplifier is a four-terminal device that provides a gain of up to 40 dB while maintaining a wide common-mode input voltage range. The very low noise performance of the amplifier, combined with its high common-mode rejection ratio, make it an ideal component for a wide range of instrumentation applications. It is particularly suitable for single ended-to-differential signal conversion, in which a higher signal-to-noise ratio is required than can be achieved with standard instrumentation amplifiers.

The AD847ARZ-REEL7 features a wide gain-setting range of up-to 1000 with low noise performance of 0.7nV/√Hz. The device includes a high common-mode rejection ratio of 130Db over a wide frequency range. The amplifier is also available in single and dual packages and is rated for extended temperature ranges of -40°C to +125°C.

The operational amplifier uses common-mode feedback for gain setting. This means that the amplifier samples the input signal together with a portion of the output signal. The two signals are then summed in an integrator, effectively forming a closed-loop control system. As the gain setting varies, the system adjusts the gain until the desired balance is achieved. The closed-loop operation not only allows for precise gain settings, but it also helps to ensure that the amplifier has the high common-mode rejection ratio. In addition, the AD847ARZ-REEL7 uses a feedback loop to maintain a constant output impedance, allowing for accurate load-independent performance.

The AD847ARZ-REEL7 is a versatile amplifier that can be used in a variety of instrumentation and data conversion applications. The clamping circuit allows the device to receive single-ended inputs and produce differential outputs, which can then be used in single ended-to-differential signal conversion. The output is virtually unaffected by load in the presence of a differential signal, meaning that the amplifier can be used in a variety of data conversion situations. In addition, the low noise performance of the amplifier makes it well suited for low-noise applications, such as medical instrumentation.

In summary, the AD847ARZ-REEL7 is a low-noise, precision, rail-to-rail output instrumentation amplifier from Analog Devices. The amplifier features a wide gain-setting range of up-to 1000 with low noise performance of 0.7nV/√Hz and is available in single and dual packages. It uses common-mode feedback for gain setting, allowing for precise gain settings and a high common-mode rejection ratio. The amplifier is ideal for single-ended-to-differential signal conversion and other low-noise applications, making it an ideal component for a wide range of instrumentation applications.

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