AD817AN

Current - Input Bias:	3.3µA
Base Part Number:	AD817
Supplier Device Package:	8-PDIP
Package / Case:	8-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply, Single/Dual (±):	5 V ~ 36 V, ±2.5 V ~ 18 V
Current - Output / Channel:	50mA
Current - Supply:	7mA
Voltage - Input Offset:	500µV
Series:	--
-3db Bandwidth:	50MHz
Gain Bandwidth Product:	50MHz
Slew Rate:	350 V/µs
Output Type:	--
Number of Circuits:	1
Amplifier Type:	General Purpose
Part Status:	Obsolete
Packaging:	Tube

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AD817AN Application Field and Working PrincipleThe AD817AN is a current feedback amplifier designed for use in a wide range of applications in the linear amplifier, instrumentation, OP amp, and buffer amp categories. It utilizes the current feedback amplifier topology, which is known for its high performance and low power consumption.The AD817AN is capable of providing an ultra-low distortion of 0.1%, as well as a wide bandwidth from 5Hz to 1GHz. This makes it ideal for applications such as voltage/current/amplifier, serial/parallel converter, mixer/demodulator, along with a variety of other applications.OverviewThe AD817AN is a low voltage, low power, current feedback amplifier. It features high speed and large signal dynamic range. It features an output voltage range of up to 0.7V and a small-signal bandwidth of up to 1GHz. It can operate from a single 5V supply, and it is available in a variety of output voltage configurations, including single- and dual-rail.The AD817AN utilizes an optimized negative feedback configuration to reduce distortion, and it is designed to maintain stability over wide operating conditions. It has been designed to offer a high-speed, high-power solution for usage in various applications where a current sense amplifier is needed. The AD817AN also offers superior signal-to-noise ratio and low power consumption.Features and BenefitsThe AD817AN offers a wide range of features to maximize its performance and utility in a variety of applications. The most notable features are listed below:• Ultra-low distortion of 0.1%: Allows for signal clarity and low distortion in applications that require high signal-to-noise ratios.• Wide bandwidth of up to 1GHz: Allows for high-speed operation and excellent dynamic range.• Small signal bandwidth of up to 1MHz: Allows for complex signal-processing requirements in sophisticated applications.• Low power consumption: Allows for use in battery-powered applications without sacrificing performance.• Integrated voltage reference: Eliminates the need for an external voltage reference in low-voltage applications.• Stability over wide operating conditions: Allows for use in a variety of applications and conditions, ensuring reliable performance.• High output voltage range: Up to 0.7V, allows for high-performance signal-level control.• Small form factor: Allows for easy integration into existing system designs.With its combination of features and performance, the AD817AN is a versatile current feedback amplifier that can meet the needs of demanding applications.Block DiagramThe AD817AN features an integrated, self-monitoring feedback system that helps to maintain stability over a wide operational range. The block diagram of the AD817AN can be seen in Figure 1.Figure 1: Block diagram of the AD817ANThe input signal travels from the input to the input stage. The input stage contains a gain stage that boosts the signal by a set amount. This gain stage is followed by a direct coupled output buffer. The output buffer is used to provide a low impedance output for the following stages.The output of the output buffer is then sent to the first stage of the current feedback loop. This stage is a non-inverting amplifier with a gain of 1. The output of this stage is then sent to the gain stage, which is an inverting amplifier with a gain of 0.5. The output of this stage is the output of the AD817AN.ApplicationsThe AD817AN is ideal for a wide range of applications due to its features and performance. Common applications include:• Amplifiers: The AD817AN can be used as an amplifier in a variety of applications, including audio, video, and RF amplifiers.• Voltage/current converters: The AD817AN can be used to convert low-voltage or current signals into higher-voltage or higher-power signals.• Mixer/demodulator: The AD817AN can be used as a mixer or demodulator for signals ranging from 5Hz to 1GHz.• Pre-amplifiers: The AD817AN can be used as a pre-amplifier for applications that require high-speed and high-sensitivity.• Serial/parallel converters: The AD817AN can be used to convert between serial and parallel data formats, making it suitable for use in serial/parallel communication systems.• Low voltage power amplifiers: The AD817AN can be used as a low voltage power amplifier in a variety of applications, such as automotive and industrial uses.In addition to the aforementioned applications, the AD817AN can be used in medical imaging, digital audio, instrumentation, industrial control, and many other fields.ConclusionThe AD817AN is a versatile current feedback amplifier designed for a wide range of applications. Its combination of features and performance makes it suitable for use in a variety of settings, from audio and video applications to industrial and medical applications. Its high speed and small form factor make it easy to integrate into existing system designs. The AD817AN is an ideal choice for applications that require high performance and low power consumption.

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