**AD8058AR: A High-Speed Voltage Feedback Operational Amplifier**

In the realm of analog signal processing, where speed and precision are paramount, the **AD8058AR from Analog Devices** stands out as a quintessential high-performance operational amplifier. This device exemplifies the advanced engineering required to meet the demanding specifications of modern video, imaging, and communications systems. As a voltage feedback amplifier (VFA), it offers designers a familiar and flexible architecture without compromising on sheer performance.

The core of the AD8058AR's capability lies in its impressive **-3 dB bandwidth of 325 MHz** and a exceptionally fast **slew rate of 1000 V/μs**. These specifications are critical for applications requiring the faithful amplification of high-frequency signals with minimal distortion. Whether driving an ADC or processing a fast pulse, the amplifier ensures that signal integrity is maintained. Furthermore, it maintains this speed while achieving a very low **differential gain and phase error of 0.02% and 0.03°**, respectively, making it an ideal choice for professional video equipment where color fidelity is non-negotiable.

Another significant advantage is its low power consumption. Operating on a supply voltage from ±5 V to ±15 V, the AD8058AR draws a quiescent current of just 5.5 mA per amplifier. This balance of high speed and low power dissipation is a key feature, enabling its use in portable and power-sensitive applications without a performance penalty.

The device is also designed for stability. Its **well-behaved voltage feedback architecture** simplifies the design process, allowing engineers to use standard op-amp compensation techniques. It is internally compensated for unity gain stability, making it easy to implement in various configurations such as inverting, non-inverting, and Sallen-Key filters. The robust output stage can drive loads as low as 150 Ω, which is essential for driving transmission lines in video distribution systems.

Despite its high speed, the AD8058AR does not sacrifice DC performance. It features a low input offset voltage and high open-loop gain, ensuring accuracy in both AC and DC-coupled circuits. This combination makes it a versatile tool for a wide range of tasks, from buffering high-speed DACs to acting as a photodiode transimpedance amplifier in pre-amplification stages.

**ICGOO**DFIND: The AD8058AR is a superior choice for designers seeking a proven, high-speed voltage feedback op-amp that delivers an exceptional blend of bandwidth, slew rate, and low power consumption for demanding analog applications.

**Keywords:** High-Speed, Voltage Feedback, Operational Amplifier, Low Power, Wide Bandwidth.